render/pixel_format: generate tables via kdfs

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

include/render/pixel_format.h

@@ -20,10 +20,13 @@ struct wlr_pixel_format_info {
 
 	/* Bytes per block (including padding) */
 	uint32_t bytes_per_block;
-	/* Size of a block in pixels (zero for 1×1) */
+	/* Size of a block in pixels */
 	uint32_t block_width, block_height;
 };
 
+extern const struct wlr_pixel_format_info pixel_format_info[];
+extern const size_t pixel_format_info_len;
+
 /**
  * Get pixel format information from a DRM FourCC.
  *
@@ -53,6 +56,8 @@ uint32_t convert_wl_shm_format_to_drm(enum wl_shm_format fmt);
  */
 enum wl_shm_format convert_drm_format_to_wl_shm(uint32_t fmt);
 
+bool pixel_format_is_opaque(uint32_t fmt);
+
 /**
  * Return true if the DRM FourCC fmt has an alpha channel, false otherwise.
  */

render/gen_pixel_format.sh

@@ -0,0 +1,68 @@
+#!/bin/sh -eu
+#
+# usage: gen_pixel_format.sh pixel_format_table.c
+
+KDFS=${KDFS:-kdfs}
+
+output_file="$1"
+
+gen_info() {
+	"$KDFS" show --json 'DRM_FORMAT_*' | jq -r '
+		to_entries[]
+		| select((.value.bytes_plane | length) == 1)
+		|
+			"	{\n" +
+			"		.drm_format = \(.key),\n" +
+			"		.bytes_per_block = \(.value.bytes_plane[0]),\n" +
+			"		.block_width = \(.value.texel_block_dimension[0]),\n" +
+			"		.block_height = \(.value.texel_block_dimension[1]),\n" +
+			"	},"
+	'
+}
+
+gen_opaque() {
+	"$KDFS" show --json 'DRM_FORMAT_*' | jq -r '
+		to_entries[]
+		| select(any(.value.sample_info[]; .channel == "a") | not)
+		| "	case \(.key):"
+	'
+}
+
+gen_ycbcr() {
+	"$KDFS" show --json 'DRM_FORMAT_*' | jq -r '
+		to_entries[]
+		| select(.value.color_model == "yuvsda")
+		| "	case \(.key):"
+	'
+}
+
+cat >"$output_file" << EOF
+// Generated by gen_pixel_formats.sh - DO NOT EDIT
+
+#include <drm_fourcc.h>
+#include "render/pixel_format.h"
+
+const struct wlr_pixel_format_info pixel_format_info[] = {
+$(gen_info)
+};
+
+const size_t pixel_format_info_len = sizeof(pixel_format_info) / sizeof(pixel_format_info[0]);
+
+bool pixel_format_is_opaque(uint32_t format) {
+	switch (format) {
+$(gen_opaque)
+		return true;
+	default:
+		return false;
+	}
+}
+
+bool pixel_format_is_ycbcr(uint32_t format) {
+	switch (format) {
+$(gen_ycbcr)
+		return true;
+	default:
+		return false;
+	}
+}
+EOF

render/meson.build

@@ -13,11 +13,17 @@ wlr_files += files(
 	'drm_syncobj.c',
 	'pass.c',
 	'pixel_format.c',
+	'pixel_format_table.c',
 	'swapchain.c',
 	'wlr_renderer.c',
 	'wlr_texture.c',
 )
 
+run_target(
+	'gen-pixel-format',
+	command: [files('gen_pixel_format.sh'), files('pixel_format_table.c')],
+)
+
 has_dma_buf_import_sync_file = cc.has_header('linux/dma-buf.h') and cc.has_define(
 	'DMA_BUF_IOCTL_IMPORT_SYNC_FILE',
 	prefix: '#include <linux/dma-buf.h>',

render/pixel_format.c

@@ -3,215 +3,8 @@
 #include <wlr/util/log.h>
 #include "render/pixel_format.h"
 
-static const struct wlr_pixel_format_info pixel_format_info[] = {
-	{
-		.drm_format = DRM_FORMAT_XRGB8888,
-		.bytes_per_block = 4,
-	},
-	{
-		.drm_format = DRM_FORMAT_ARGB8888,
-		.bytes_per_block = 4,
-	},
-	{
-		.drm_format = DRM_FORMAT_XBGR8888,
-		.bytes_per_block = 4,
-	},
-	{
-		.drm_format = DRM_FORMAT_ABGR8888,
-		.bytes_per_block = 4,
-	},
-	{
-		.drm_format = DRM_FORMAT_RGBX8888,
-		.bytes_per_block = 4,
-	},
-	{
-		.drm_format = DRM_FORMAT_RGBA8888,
-		.bytes_per_block = 4,
-	},
-	{
-		.drm_format = DRM_FORMAT_BGRX8888,
-		.bytes_per_block = 4,
-	},
-	{
-		.drm_format = DRM_FORMAT_BGRA8888,
-		.bytes_per_block = 4,
-	},
-	{
-		.drm_format = DRM_FORMAT_R8,
-		.bytes_per_block = 1,
-	},
-	{
-		.drm_format = DRM_FORMAT_R16F,
-		.bytes_per_block = 2,
-	},
-	{
-		.drm_format = DRM_FORMAT_R32F,
-		.bytes_per_block = 4,
-	},
-	{
-		.drm_format = DRM_FORMAT_GR88,
-		.bytes_per_block = 2,
-	},
-	{
-		.drm_format = DRM_FORMAT_GR1616F,
-		.bytes_per_block = 4,
-	},
-	{
-		.drm_format = DRM_FORMAT_GR3232F,
-		.bytes_per_block = 8,
-	},
-	{
-		.drm_format = DRM_FORMAT_RGB888,
-		.bytes_per_block = 3,
-	},
-	{
-		.drm_format = DRM_FORMAT_BGR888,
-		.bytes_per_block = 3,
-	},
-	{
-		.drm_format = DRM_FORMAT_BGR161616,
-		.bytes_per_block = 6,
-	},
-	{
-		.drm_format = DRM_FORMAT_BGR161616F,
-		.bytes_per_block = 6,
-	},
-	{
-		.drm_format = DRM_FORMAT_BGR323232F,
-		.bytes_per_block = 12,
-	},
-	{
-		.drm_format = DRM_FORMAT_RGBX4444,
-		.bytes_per_block = 2,
-	},
-	{
-		.drm_format = DRM_FORMAT_RGBA4444,
-		.bytes_per_block = 2,
-	},
-	{
-		.drm_format = DRM_FORMAT_BGRX4444,
-		.bytes_per_block = 2,
-	},
-	{
-		.drm_format = DRM_FORMAT_BGRA4444,
-		.bytes_per_block = 2,
-	},
-	{
-		.drm_format = DRM_FORMAT_RGBX5551,
-		.bytes_per_block = 2,
-	},
-	{
-		.drm_format = DRM_FORMAT_RGBA5551,
-		.bytes_per_block = 2,
-	},
-	{
-		.drm_format = DRM_FORMAT_BGRX5551,
-		.bytes_per_block = 2,
-	},
-	{
-		.drm_format = DRM_FORMAT_BGRA5551,
-		.bytes_per_block = 2,
-	},
-	{
-		.drm_format = DRM_FORMAT_XRGB1555,
-		.bytes_per_block = 2,
-	},
-	{
-		.drm_format = DRM_FORMAT_ARGB1555,
-		.bytes_per_block = 2,
-	},
-	{
-		.drm_format = DRM_FORMAT_RGB565,
-		.bytes_per_block = 2,
-	},
-	{
-		.drm_format = DRM_FORMAT_BGR565,
-		.bytes_per_block = 2,
-	},
-	{
-		.drm_format = DRM_FORMAT_XRGB2101010,
-		.bytes_per_block = 4,
-	},
-	{
-		.drm_format = DRM_FORMAT_ARGB2101010,
-		.bytes_per_block = 4,
-	},
-	{
-		.drm_format = DRM_FORMAT_XBGR2101010,
-		.bytes_per_block = 4,
-	},
-	{
-		.drm_format = DRM_FORMAT_ABGR2101010,
-		.bytes_per_block = 4,
-	},
-	{
-		.drm_format = DRM_FORMAT_XBGR16161616F,
-		.bytes_per_block = 8,
-	},
-	{
-		.drm_format = DRM_FORMAT_ABGR16161616F,
-		.bytes_per_block = 8,
-	},
-	{
-		.drm_format = DRM_FORMAT_ABGR32323232F,
-		.bytes_per_block = 16,
-	},
-	{
-		.drm_format = DRM_FORMAT_XBGR16161616,
-		.bytes_per_block = 8,
-	},
-	{
-		.drm_format = DRM_FORMAT_ABGR16161616,
-		.bytes_per_block = 8,
-	},
-	{
-		.drm_format = DRM_FORMAT_YVYU,
-		.bytes_per_block = 4,
-		.block_width = 2,
-		.block_height = 1,
-	},
-	{
-		.drm_format = DRM_FORMAT_VYUY,
-		.bytes_per_block = 4,
-		.block_width = 2,
-		.block_height = 1,
-	},
-};
-
-static const uint32_t opaque_pixel_formats[] = {
-	DRM_FORMAT_XRGB8888,
-	DRM_FORMAT_XBGR8888,
-	DRM_FORMAT_RGBX8888,
-	DRM_FORMAT_BGRX8888,
-	DRM_FORMAT_R8,
-	DRM_FORMAT_GR88,
-	DRM_FORMAT_RGB888,
-	DRM_FORMAT_BGR888,
-	DRM_FORMAT_RGBX4444,
-	DRM_FORMAT_BGRX4444,
-	DRM_FORMAT_RGBX5551,
-	DRM_FORMAT_BGRX5551,
-	DRM_FORMAT_XRGB1555,
-	DRM_FORMAT_RGB565,
-	DRM_FORMAT_BGR565,
-	DRM_FORMAT_XRGB2101010,
-	DRM_FORMAT_XBGR2101010,
-	DRM_FORMAT_XBGR16161616F,
-	DRM_FORMAT_XBGR16161616,
-	DRM_FORMAT_YVYU,
-	DRM_FORMAT_VYUY,
-	DRM_FORMAT_NV12,
-	DRM_FORMAT_P010,
-};
-
-static const size_t pixel_format_info_size =
-	sizeof(pixel_format_info) / sizeof(pixel_format_info[0]);
-
-static const size_t opaque_pixel_formats_size =
-	sizeof(opaque_pixel_formats) / sizeof(opaque_pixel_formats[0]);
-
 const struct wlr_pixel_format_info *drm_get_pixel_format_info(uint32_t fmt) {
-	for (size_t i = 0; i < pixel_format_info_size; ++i) {
+	for (size_t i = 0; i < pixel_format_info_len; ++i) {
 		if (pixel_format_info[i].drm_format == fmt) {
 			return &pixel_format_info[i];
 		}
@@ -243,8 +36,7 @@ enum wl_shm_format convert_drm_format_to_wl_shm(uint32_t fmt) {
 }
 
 uint32_t pixel_format_info_pixels_per_block(const struct wlr_pixel_format_info *info) {
-	uint32_t pixels = info->block_width * info->block_height;
+	return info->block_width * info->block_height;
-	return pixels > 0 ? pixels : 1;
 }
 
 static int32_t div_round_up(int32_t dividend, int32_t divisor) {
@@ -287,77 +79,7 @@ bool pixel_format_info_check_stride(const struct wlr_pixel_format_info *fmt,
 }
 
 bool pixel_format_has_alpha(uint32_t fmt) {
-	for (size_t i = 0; i < opaque_pixel_formats_size; i++) {
+	return !pixel_format_is_opaque(fmt);
-		if (fmt == opaque_pixel_formats[i]) {
-			return false;
-		}
-	}
-	return true;
-}
-
-bool pixel_format_is_ycbcr(uint32_t format) {
-	switch (format) {
-	case DRM_FORMAT_AYUV:
-	case DRM_FORMAT_NV12:
-	case DRM_FORMAT_NV15:
-	case DRM_FORMAT_NV16:
-	case DRM_FORMAT_NV20:
-	case DRM_FORMAT_NV21:
-	case DRM_FORMAT_NV24:
-	case DRM_FORMAT_NV30:
-	case DRM_FORMAT_NV42:
-	case DRM_FORMAT_NV61:
-	case DRM_FORMAT_P010:
-	case DRM_FORMAT_P012:
-	case DRM_FORMAT_P016:
-	case DRM_FORMAT_P030:
-	case DRM_FORMAT_P210:
-	case DRM_FORMAT_Q401:
-	case DRM_FORMAT_Q410:
-	case DRM_FORMAT_S010:
-	case DRM_FORMAT_S012:
-	case DRM_FORMAT_S016:
-	case DRM_FORMAT_S210:
-	case DRM_FORMAT_S212:
-	case DRM_FORMAT_S216:
-	case DRM_FORMAT_S410:
-	case DRM_FORMAT_S412:
-	case DRM_FORMAT_S416:
-	case DRM_FORMAT_UYVY:
-	case DRM_FORMAT_VUY101010:
-	case DRM_FORMAT_VUY888:
-	case DRM_FORMAT_VYUY:
-	case DRM_FORMAT_X0L0:
-	case DRM_FORMAT_X0L2:
-	case DRM_FORMAT_XVYU12_16161616:
-	case DRM_FORMAT_XVYU16161616:
-	case DRM_FORMAT_XVYU2101010:
-	case DRM_FORMAT_XYUV8888:
-	case DRM_FORMAT_Y0L0:
-	case DRM_FORMAT_Y0L2:
-	case DRM_FORMAT_Y210:
-	case DRM_FORMAT_Y212:
-	case DRM_FORMAT_Y216:
-	case DRM_FORMAT_Y410:
-	case DRM_FORMAT_Y412:
-	case DRM_FORMAT_Y416:
-	case DRM_FORMAT_YUV410:
-	case DRM_FORMAT_YUV411:
-	case DRM_FORMAT_YUV420:
-	case DRM_FORMAT_YUV420_10BIT:
-	case DRM_FORMAT_YUV420_8BIT:
-	case DRM_FORMAT_YUV422:
-	case DRM_FORMAT_YUV444:
-	case DRM_FORMAT_YUYV:
-	case DRM_FORMAT_YVU410:
-	case DRM_FORMAT_YVU411:
-	case DRM_FORMAT_YVU420:
-	case DRM_FORMAT_YVU422:
-	case DRM_FORMAT_YVU444:
-	case DRM_FORMAT_YVYU:
-		return true;
-	}
-	return false;
 }
 
 uint32_t pixel_format_get_opaque_substitute(uint32_t fmt) {

render/pixel_format_table.c

@@ -0,0 +1,551 @@
+// Generated by gen_pixel_formats.sh - DO NOT EDIT
+
+#include <drm_fourcc.h>
+#include "render/pixel_format.h"
+
+const struct wlr_pixel_format_info pixel_format_info[] = {
+	{
+		.drm_format = DRM_FORMAT_ABGR1555,
+		.bytes_per_block = 2,
+		.block_width = 1,
+		.block_height = 1,
+	},
+	{
+		.drm_format = DRM_FORMAT_ABGR16161616,
+		.bytes_per_block = 8,
+		.block_width = 1,
+		.block_height = 1,
+	},
+	{
+		.drm_format = DRM_FORMAT_ABGR16161616F,
+		.bytes_per_block = 8,
+		.block_width = 1,
+		.block_height = 1,
+	},
+	{
+		.drm_format = DRM_FORMAT_ABGR2101010,
+		.bytes_per_block = 4,
+		.block_width = 1,
+		.block_height = 1,
+	},
+	{
+		.drm_format = DRM_FORMAT_ABGR32323232F,
+		.bytes_per_block = 16,
+		.block_width = 1,
+		.block_height = 1,
+	},
+	{
+		.drm_format = DRM_FORMAT_ABGR4444,
+		.bytes_per_block = 2,
+		.block_width = 1,
+		.block_height = 1,
+	},
+	{
+		.drm_format = DRM_FORMAT_ABGR8888,
+		.bytes_per_block = 4,
+		.block_width = 1,
+		.block_height = 1,
+	},
+	{
+		.drm_format = DRM_FORMAT_ARGB1555,
+		.bytes_per_block = 2,
+		.block_width = 1,
+		.block_height = 1,
+	},
+	{
+		.drm_format = DRM_FORMAT_ARGB16161616,
+		.bytes_per_block = 8,
+		.block_width = 1,
+		.block_height = 1,
+	},
+	{
+		.drm_format = DRM_FORMAT_ARGB16161616F,
+		.bytes_per_block = 8,
+		.block_width = 1,
+		.block_height = 1,
+	},
+	{
+		.drm_format = DRM_FORMAT_ARGB2101010,
+		.bytes_per_block = 4,
+		.block_width = 1,
+		.block_height = 1,
+	},
+	{
+		.drm_format = DRM_FORMAT_ARGB4444,
+		.bytes_per_block = 2,
+		.block_width = 1,
+		.block_height = 1,
+	},
+	{
+		.drm_format = DRM_FORMAT_ARGB8888,
+		.bytes_per_block = 4,
+		.block_width = 1,
+		.block_height = 1,
+	},
+	{
+		.drm_format = DRM_FORMAT_AVUY8888,
+		.bytes_per_block = 4,
+		.block_width = 1,
+		.block_height = 1,
+	},
+	{
+		.drm_format = DRM_FORMAT_AXBXGXRX106106106106,
+		.bytes_per_block = 8,
+		.block_width = 1,
+		.block_height = 1,
+	},
+	{
+		.drm_format = DRM_FORMAT_AYUV,
+		.bytes_per_block = 4,
+		.block_width = 1,
+		.block_height = 1,
+	},
+	{
+		.drm_format = DRM_FORMAT_BGR161616,
+		.bytes_per_block = 6,
+		.block_width = 1,
+		.block_height = 1,
+	},
+	{
+		.drm_format = DRM_FORMAT_BGR161616F,
+		.bytes_per_block = 6,
+		.block_width = 1,
+		.block_height = 1,
+	},
+	{
+		.drm_format = DRM_FORMAT_BGR233,
+		.bytes_per_block = 1,
+		.block_width = 1,
+		.block_height = 1,
+	},
+	{
+		.drm_format = DRM_FORMAT_BGR323232F,
+		.bytes_per_block = 12,
+		.block_width = 1,
+		.block_height = 1,
+	},
+	{
+		.drm_format = DRM_FORMAT_BGR565,
+		.bytes_per_block = 2,
+		.block_width = 1,
+		.block_height = 1,
+	},
+	{
+		.drm_format = DRM_FORMAT_BGR888,
+		.bytes_per_block = 3,
+		.block_width = 1,
+		.block_height = 1,
+	},
+	{
+		.drm_format = DRM_FORMAT_BGRA1010102,
+		.bytes_per_block = 4,
+		.block_width = 1,
+		.block_height = 1,
+	},
+	{
+		.drm_format = DRM_FORMAT_BGRA4444,
+		.bytes_per_block = 2,
+		.block_width = 1,
+		.block_height = 1,
+	},
+	{
+		.drm_format = DRM_FORMAT_BGRA5551,
+		.bytes_per_block = 2,
+		.block_width = 1,
+		.block_height = 1,
+	},
+	{
+		.drm_format = DRM_FORMAT_BGRA8888,
+		.bytes_per_block = 4,
+		.block_width = 1,
+		.block_height = 1,
+	},
+	{
+		.drm_format = DRM_FORMAT_BGRX1010102,
+		.bytes_per_block = 4,
+		.block_width = 1,
+		.block_height = 1,
+	},
+	{
+		.drm_format = DRM_FORMAT_BGRX4444,
+		.bytes_per_block = 2,
+		.block_width = 1,
+		.block_height = 1,
+	},
+	{
+		.drm_format = DRM_FORMAT_BGRX5551,
+		.bytes_per_block = 2,
+		.block_width = 1,
+		.block_height = 1,
+	},
+	{
+		.drm_format = DRM_FORMAT_BGRX8888,
+		.bytes_per_block = 4,
+		.block_width = 1,
+		.block_height = 1,
+	},
+	{
+		.drm_format = DRM_FORMAT_GR1616,
+		.bytes_per_block = 4,
+		.block_width = 1,
+		.block_height = 1,
+	},
+	{
+		.drm_format = DRM_FORMAT_GR1616F,
+		.bytes_per_block = 4,
+		.block_width = 1,
+		.block_height = 1,
+	},
+	{
+		.drm_format = DRM_FORMAT_GR3232F,
+		.bytes_per_block = 8,
+		.block_width = 1,
+		.block_height = 1,
+	},
+	{
+		.drm_format = DRM_FORMAT_GR88,
+		.bytes_per_block = 2,
+		.block_width = 1,
+		.block_height = 1,
+	},
+	{
+		.drm_format = DRM_FORMAT_R10,
+		.bytes_per_block = 2,
+		.block_width = 1,
+		.block_height = 1,
+	},
+	{
+		.drm_format = DRM_FORMAT_R12,
+		.bytes_per_block = 2,
+		.block_width = 1,
+		.block_height = 1,
+	},
+	{
+		.drm_format = DRM_FORMAT_R16,
+		.bytes_per_block = 2,
+		.block_width = 1,
+		.block_height = 1,
+	},
+	{
+		.drm_format = DRM_FORMAT_R16F,
+		.bytes_per_block = 2,
+		.block_width = 1,
+		.block_height = 1,
+	},
+	{
+		.drm_format = DRM_FORMAT_R32F,
+		.bytes_per_block = 4,
+		.block_width = 1,
+		.block_height = 1,
+	},
+	{
+		.drm_format = DRM_FORMAT_R8,
+		.bytes_per_block = 1,
+		.block_width = 1,
+		.block_height = 1,
+	},
+	{
+		.drm_format = DRM_FORMAT_RG1616,
+		.bytes_per_block = 4,
+		.block_width = 1,
+		.block_height = 1,
+	},
+	{
+		.drm_format = DRM_FORMAT_RG88,
+		.bytes_per_block = 2,
+		.block_width = 1,
+		.block_height = 1,
+	},
+	{
+		.drm_format = DRM_FORMAT_RGB161616,
+		.bytes_per_block = 6,
+		.block_width = 1,
+		.block_height = 1,
+	},
+	{
+		.drm_format = DRM_FORMAT_RGB332,
+		.bytes_per_block = 1,
+		.block_width = 1,
+		.block_height = 1,
+	},
+	{
+		.drm_format = DRM_FORMAT_RGB565,
+		.bytes_per_block = 2,
+		.block_width = 1,
+		.block_height = 1,
+	},
+	{
+		.drm_format = DRM_FORMAT_RGB888,
+		.bytes_per_block = 3,
+		.block_width = 1,
+		.block_height = 1,
+	},
+	{
+		.drm_format = DRM_FORMAT_RGBA1010102,
+		.bytes_per_block = 4,
+		.block_width = 1,
+		.block_height = 1,
+	},
+	{
+		.drm_format = DRM_FORMAT_RGBA4444,
+		.bytes_per_block = 2,
+		.block_width = 1,
+		.block_height = 1,
+	},
+	{
+		.drm_format = DRM_FORMAT_RGBA5551,
+		.bytes_per_block = 2,
+		.block_width = 1,
+		.block_height = 1,
+	},
+	{
+		.drm_format = DRM_FORMAT_RGBA8888,
+		.bytes_per_block = 4,
+		.block_width = 1,
+		.block_height = 1,
+	},
+	{
+		.drm_format = DRM_FORMAT_RGBX1010102,
+		.bytes_per_block = 4,
+		.block_width = 1,
+		.block_height = 1,
+	},
+	{
+		.drm_format = DRM_FORMAT_RGBX4444,
+		.bytes_per_block = 2,
+		.block_width = 1,
+		.block_height = 1,
+	},
+	{
+		.drm_format = DRM_FORMAT_RGBX5551,
+		.bytes_per_block = 2,
+		.block_width = 1,
+		.block_height = 1,
+	},
+	{
+		.drm_format = DRM_FORMAT_RGBX8888,
+		.bytes_per_block = 4,
+		.block_width = 1,
+		.block_height = 1,
+	},
+	{
+		.drm_format = DRM_FORMAT_UYVY,
+		.bytes_per_block = 4,
+		.block_width = 2,
+		.block_height = 1,
+	},
+	{
+		.drm_format = DRM_FORMAT_VUY888,
+		.bytes_per_block = 3,
+		.block_width = 1,
+		.block_height = 1,
+	},
+	{
+		.drm_format = DRM_FORMAT_VYUY,
+		.bytes_per_block = 4,
+		.block_width = 2,
+		.block_height = 1,
+	},
+	{
+		.drm_format = DRM_FORMAT_XBGR1555,
+		.bytes_per_block = 2,
+		.block_width = 1,
+		.block_height = 1,
+	},
+	{
+		.drm_format = DRM_FORMAT_XBGR16161616,
+		.bytes_per_block = 8,
+		.block_width = 1,
+		.block_height = 1,
+	},
+	{
+		.drm_format = DRM_FORMAT_XBGR16161616F,
+		.bytes_per_block = 8,
+		.block_width = 1,
+		.block_height = 1,
+	},
+	{
+		.drm_format = DRM_FORMAT_XBGR2101010,
+		.bytes_per_block = 4,
+		.block_width = 1,
+		.block_height = 1,
+	},
+	{
+		.drm_format = DRM_FORMAT_XBGR4444,
+		.bytes_per_block = 2,
+		.block_width = 1,
+		.block_height = 1,
+	},
+	{
+		.drm_format = DRM_FORMAT_XBGR8888,
+		.bytes_per_block = 4,
+		.block_width = 1,
+		.block_height = 1,
+	},
+	{
+		.drm_format = DRM_FORMAT_XRGB1555,
+		.bytes_per_block = 2,
+		.block_width = 1,
+		.block_height = 1,
+	},
+	{
+		.drm_format = DRM_FORMAT_XRGB16161616,
+		.bytes_per_block = 8,
+		.block_width = 1,
+		.block_height = 1,
+	},
+	{
+		.drm_format = DRM_FORMAT_XRGB16161616F,
+		.bytes_per_block = 8,
+		.block_width = 1,
+		.block_height = 1,
+	},
+	{
+		.drm_format = DRM_FORMAT_XRGB2101010,
+		.bytes_per_block = 4,
+		.block_width = 1,
+		.block_height = 1,
+	},
+	{
+		.drm_format = DRM_FORMAT_XRGB4444,
+		.bytes_per_block = 2,
+		.block_width = 1,
+		.block_height = 1,
+	},
+	{
+		.drm_format = DRM_FORMAT_XRGB8888,
+		.bytes_per_block = 4,
+		.block_width = 1,
+		.block_height = 1,
+	},
+	{
+		.drm_format = DRM_FORMAT_XVUY8888,
+		.bytes_per_block = 4,
+		.block_width = 1,
+		.block_height = 1,
+	},
+	{
+		.drm_format = DRM_FORMAT_XYUV8888,
+		.bytes_per_block = 4,
+		.block_width = 1,
+		.block_height = 1,
+	},
+	{
+		.drm_format = DRM_FORMAT_YUYV,
+		.bytes_per_block = 4,
+		.block_width = 2,
+		.block_height = 1,
+	},
+	{
+		.drm_format = DRM_FORMAT_YVYU,
+		.bytes_per_block = 4,
+		.block_width = 2,
+		.block_height = 1,
+	},
+};
+
+const size_t pixel_format_info_len = sizeof(pixel_format_info) / sizeof(pixel_format_info[0]);
+
+bool pixel_format_is_opaque(uint32_t format) {
+	switch (format) {
+	case DRM_FORMAT_BGR161616:
+	case DRM_FORMAT_BGR161616F:
+	case DRM_FORMAT_BGR233:
+	case DRM_FORMAT_BGR323232F:
+	case DRM_FORMAT_BGR565:
+	case DRM_FORMAT_BGR888:
+	case DRM_FORMAT_BGRX1010102:
+	case DRM_FORMAT_BGRX4444:
+	case DRM_FORMAT_BGRX5551:
+	case DRM_FORMAT_BGRX8888:
+	case DRM_FORMAT_GR1616:
+	case DRM_FORMAT_GR1616F:
+	case DRM_FORMAT_GR3232F:
+	case DRM_FORMAT_GR88:
+	case DRM_FORMAT_NV12:
+	case DRM_FORMAT_NV16:
+	case DRM_FORMAT_NV21:
+	case DRM_FORMAT_NV24:
+	case DRM_FORMAT_NV42:
+	case DRM_FORMAT_NV61:
+	case DRM_FORMAT_R10:
+	case DRM_FORMAT_R12:
+	case DRM_FORMAT_R16:
+	case DRM_FORMAT_R16F:
+	case DRM_FORMAT_R32F:
+	case DRM_FORMAT_R8:
+	case DRM_FORMAT_RG1616:
+	case DRM_FORMAT_RG88:
+	case DRM_FORMAT_RGB161616:
+	case DRM_FORMAT_RGB332:
+	case DRM_FORMAT_RGB565:
+	case DRM_FORMAT_RGB888:
+	case DRM_FORMAT_RGBX1010102:
+	case DRM_FORMAT_RGBX4444:
+	case DRM_FORMAT_RGBX5551:
+	case DRM_FORMAT_RGBX8888:
+	case DRM_FORMAT_S016:
+	case DRM_FORMAT_S216:
+	case DRM_FORMAT_S416:
+	case DRM_FORMAT_UYVY:
+	case DRM_FORMAT_VUY888:
+	case DRM_FORMAT_VYUY:
+	case DRM_FORMAT_XBGR1555:
+	case DRM_FORMAT_XBGR16161616:
+	case DRM_FORMAT_XBGR16161616F:
+	case DRM_FORMAT_XBGR2101010:
+	case DRM_FORMAT_XBGR4444:
+	case DRM_FORMAT_XBGR8888:
+	case DRM_FORMAT_XRGB1555:
+	case DRM_FORMAT_XRGB16161616:
+	case DRM_FORMAT_XRGB16161616F:
+	case DRM_FORMAT_XRGB2101010:
+	case DRM_FORMAT_XRGB4444:
+	case DRM_FORMAT_XRGB8888:
+	case DRM_FORMAT_XVUY8888:
+	case DRM_FORMAT_XYUV8888:
+	case DRM_FORMAT_YUV420:
+	case DRM_FORMAT_YUV422:
+	case DRM_FORMAT_YUV444:
+	case DRM_FORMAT_YUYV:
+	case DRM_FORMAT_YVU420:
+	case DRM_FORMAT_YVU422:
+	case DRM_FORMAT_YVU444:
+	case DRM_FORMAT_YVYU:
+		return true;
+	default:
+		return false;
+	}
+}
+
+bool pixel_format_is_ycbcr(uint32_t format) {
+	switch (format) {
+	case DRM_FORMAT_AVUY8888:
+	case DRM_FORMAT_AYUV:
+	case DRM_FORMAT_NV12:
+	case DRM_FORMAT_NV16:
+	case DRM_FORMAT_NV21:
+	case DRM_FORMAT_NV24:
+	case DRM_FORMAT_NV42:
+	case DRM_FORMAT_NV61:
+	case DRM_FORMAT_S016:
+	case DRM_FORMAT_S216:
+	case DRM_FORMAT_S416:
+	case DRM_FORMAT_UYVY:
+	case DRM_FORMAT_VUY888:
+	case DRM_FORMAT_VYUY:
+	case DRM_FORMAT_XVUY8888:
+	case DRM_FORMAT_XYUV8888:
+	case DRM_FORMAT_YUV420:
+	case DRM_FORMAT_YUV422:
+	case DRM_FORMAT_YUV444:
+	case DRM_FORMAT_YUYV:
+	case DRM_FORMAT_YVU420:
+	case DRM_FORMAT_YVU422:
+	case DRM_FORMAT_YVU444:
+	case DRM_FORMAT_YVYU:
+		return true;
+	default:
+		return false;
+	}
+}