Gecko [ v99win.today ]

Name	Size	Permission
bridge	[ DIR ]	drwxr-xr-x
i2c	[ DIR ]	drwxr-xr-x
ttm	[ DIR ]	drwxr-xr-x
amd_asic_type.h	2.15 KB	-rw-r--r--
drm_aperture.h	1.13 KB	-rw-r--r--
drm_atomic.h	40.7 KB	-rw-r--r--
drm_atomic_helper.h	9.27 KB	-rw-r--r--
drm_atomic_state_helper.h	4.21 KB	-rw-r--r--
drm_atomic_uapi.h	2.17 KB	-rw-r--r--
drm_audio_component.h	3.79 KB	-rw-r--r--
drm_auth.h	4.64 KB	-rw-r--r--
drm_blend.h	2.35 KB	-rw-r--r--
drm_bridge.h	33.19 KB	-rw-r--r--
drm_bridge_connector.h	548 B	-rw-r--r--
drm_cache.h	3.01 KB	-rw-r--r--
drm_client.h	4.94 KB	-rw-r--r--
drm_color_mgmt.h	3.79 KB	-rw-r--r--
drm_connector.h	55.15 KB	-rw-r--r--
drm_crtc.h	44.48 KB	-rw-r--r--
drm_crtc_helper.h	2.39 KB	-rw-r--r--
drm_damage_helper.h	3.33 KB	-rw-r--r--
drm_debugfs.h	3.4 KB	-rw-r--r--
drm_debugfs_crc.h	2.66 KB	-rw-r--r--
drm_device.h	8.52 KB	-rw-r--r--
drm_displayid.h	3.32 KB	-rw-r--r--
drm_dp_aux_bus.h	1.7 KB	-rw-r--r--
drm_dp_dual_mode_helper.h	4.62 KB	-rw-r--r--
drm_dp_helper.h	87.62 KB	-rw-r--r--
drm_dp_mst_helper.h	27.73 KB	-rw-r--r--
drm_drv.h	18.67 KB	-rw-r--r--
drm_dsc.h	16.29 KB	-rw-r--r--
drm_edid.h	17.16 KB	-rw-r--r--
drm_encoder.h	10.64 KB	-rw-r--r--
drm_encoder_slave.h	6.44 KB	-rw-r--r--
drm_fb_cma_helper.h	575 B	-rw-r--r--
drm_fb_helper.h	12.71 KB	-rw-r--r--
drm_file.h	12.12 KB	-rw-r--r--
drm_fixed.h	4.71 KB	-rw-r--r--
drm_flip_work.h	3.01 KB	-rw-r--r--
drm_format_helper.h	1.49 KB	-rw-r--r--
drm_fourcc.h	9.7 KB	-rw-r--r--
drm_framebuffer.h	10.4 KB	-rw-r--r--
drm_gem.h	11.8 KB	-rw-r--r--
drm_gem_atomic_helper.h	4.61 KB	-rw-r--r--
drm_gem_cma_helper.h	6.83 KB	-rw-r--r--
drm_gem_framebuffer_helper.h	2.06 KB	-rw-r--r--
drm_gem_shmem_helper.h	4.23 KB	-rw-r--r--
drm_gem_ttm_helper.h	861 B	-rw-r--r--
drm_gem_vram_helper.h	6.17 KB	-rw-r--r--
drm_hashtab.h	3.01 KB	-rw-r--r--
drm_hdcp.h	8.79 KB	-rw-r--r--
drm_ioctl.h	6.23 KB	-rw-r--r--
drm_lease.h	1010 B	-rw-r--r--
drm_legacy.h	9.26 KB	-rw-r--r--
drm_managed.h	3.35 KB	-rw-r--r--
drm_mipi_dbi.h	4.72 KB	-rw-r--r--
drm_mipi_dsi.h	10.79 KB	-rw-r--r--
drm_mm.h	17.5 KB	-rw-r--r--
drm_mode_config.h	32.24 KB	-rw-r--r--
drm_mode_object.h	5.17 KB	-rw-r--r--
drm_modes.h	18.18 KB	-rw-r--r--
drm_modeset_helper.h	1.77 KB	-rw-r--r--
drm_modeset_helper_vtables.h	55.98 KB	-rw-r--r--
drm_modeset_lock.h	6.8 KB	-rw-r--r--
drm_of.h	4.11 KB	-rw-r--r--
drm_panel.h	6.26 KB	-rw-r--r--
drm_pciids.h	66.47 KB	-rw-r--r--
drm_plane.h	28.48 KB	-rw-r--r--
drm_plane_helper.h	1.75 KB	-rw-r--r--
drm_prime.h	4.07 KB	-rw-r--r--
drm_print.h	16.09 KB	-rw-r--r--
drm_probe_helper.h	848 B	-rw-r--r--
drm_property.h	11.76 KB	-rw-r--r--
drm_rect.h	6.86 KB	-rw-r--r--
drm_scdc_helper.h	4.34 KB	-rw-r--r--
drm_self_refresh_helper.h	594 B	-rw-r--r--
drm_simple_kms_helper.h	8.91 KB	-rw-r--r--
drm_syncobj.h	3.85 KB	-rw-r--r--
drm_sysfs.h	442 B	-rw-r--r--
drm_util.h	2.58 KB	-rw-r--r--
drm_utils.h	504 B	-rw-r--r--
drm_vblank.h	9.04 KB	-rw-r--r--
drm_vblank_work.h	1.91 KB	-rw-r--r--
drm_vma_manager.h	8.15 KB	-rw-r--r--
drm_writeback.h	4.05 KB	-rw-r--r--
gma_drm.h	413 B	-rw-r--r--
gpu_scheduler.h	15.44 KB	-rw-r--r--
gud.h	11.58 KB	-rw-r--r--
i915_component.h	1.76 KB	-rw-r--r--
i915_drm.h	3.6 KB	-rw-r--r--
i915_mei_hdcp_interface.h	5.76 KB	-rw-r--r--
i915_pciids.h	21.38 KB	-rw-r--r--
intel-gtt.h	996 B	-rw-r--r--
intel_lpe_audio.h	1.72 KB	-rw-r--r--
spsc_queue.h	3.06 KB	-rw-r--r--
task_barrier.h	2.95 KB	-rw-r--r--

Code Editor : drm_fourcc.h

/*
 * Copyright (c) 2016 Laurent Pinchart <laurent.pinchart@ideasonboard.com>
 *
 * Permission to use, copy, modify, distribute, and sell this software and its
 * documentation for any purpose is hereby granted without fee, provided that
 * the above copyright notice appear in all copies and that both that copyright
 * notice and this permission notice appear in supporting documentation, and
 * that the name of the copyright holders not be used in advertising or
 * publicity pertaining to distribution of the software without specific,
 * written prior permission.  The copyright holders make no representations
 * about the suitability of this software for any purpose.  It is provided "as
 * is" without express or implied warranty.
 *
 * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
 * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
 * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
 * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
 * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
 * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
 * OF THIS SOFTWARE.
 */
#ifndef __DRM_FOURCC_H__
#define __DRM_FOURCC_H__

#include <linux/types.h>
#include <uapi/drm/drm_fourcc.h>

/**
 * DRM_FORMAT_MAX_PLANES - maximum number of planes a DRM format can have
 */
#define DRM_FORMAT_MAX_PLANES	4u

/*
 * DRM formats are little endian.  Define host endian variants for the
 * most common formats here, to reduce the #ifdefs needed in drivers.
 *
 * Note that the DRM_FORMAT_BIG_ENDIAN flag should only be used in
 * case the format can't be specified otherwise, so we don't end up
 * with two values describing the same format.
 */
#ifdef __BIG_ENDIAN
# define DRM_FORMAT_HOST_XRGB1555     (DRM_FORMAT_XRGB1555         |	\
				       DRM_FORMAT_BIG_ENDIAN)
# define DRM_FORMAT_HOST_RGB565       (DRM_FORMAT_RGB565           |	\
				       DRM_FORMAT_BIG_ENDIAN)
# define DRM_FORMAT_HOST_XRGB8888     DRM_FORMAT_BGRX8888
# define DRM_FORMAT_HOST_ARGB8888     DRM_FORMAT_BGRA8888
#else
# define DRM_FORMAT_HOST_XRGB1555     DRM_FORMAT_XRGB1555
# define DRM_FORMAT_HOST_RGB565       DRM_FORMAT_RGB565
# define DRM_FORMAT_HOST_XRGB8888     DRM_FORMAT_XRGB8888
# define DRM_FORMAT_HOST_ARGB8888     DRM_FORMAT_ARGB8888
#endif

struct drm_device;
struct drm_mode_fb_cmd2;

/**
 * struct drm_format_info - information about a DRM format
 */
struct drm_format_info {
	/** @format: 4CC format identifier (DRM_FORMAT_*) */
	u32 format;

/**
	 * @depth:
	 *
	 * Color depth (number of bits per pixel excluding padding bits),
	 * valid for a subset of RGB formats only. This is a legacy field, do
	 * not use in new code and set to 0 for new formats.
	 */
	u8 depth;

/** @num_planes: Number of color planes (1 to 3) */
	u8 num_planes;

union {
		/**
		 * @cpp:
		 *
		 * Number of bytes per pixel (per plane), this is aliased with
		 * @char_per_block. It is deprecated in favour of using the
		 * triplet @char_per_block, @block_w, @block_h for better
		 * describing the pixel format.
		 */
		u8 cpp[DRM_FORMAT_MAX_PLANES];

/**
		 * @char_per_block:
		 *
		 * Number of bytes per block (per plane), where blocks are
		 * defined as a rectangle of pixels which are stored next to
		 * each other in a byte aligned memory region. Together with
		 * @block_w and @block_h this is used to properly describe tiles
		 * in tiled formats or to describe groups of pixels in packed
		 * formats for which the memory needed for a single pixel is not
		 * byte aligned.
		 *
		 * @cpp has been kept for historical reasons because there are
		 * a lot of places in drivers where it's used. In drm core for
		 * generic code paths the preferred way is to use
		 * @char_per_block, drm_format_info_block_width() and
		 * drm_format_info_block_height() which allows handling both
		 * block and non-block formats in the same way.
		 *
		 * For formats that are intended to be used only with non-linear
		 * modifiers both @cpp and @char_per_block must be 0 in the
		 * generic format table. Drivers could supply accurate
		 * information from their drm_mode_config.get_format_info hook
		 * if they want the core to be validating the pitch.
		 */
		u8 char_per_block[DRM_FORMAT_MAX_PLANES];
	};

/**
	 * @block_w:
	 *
	 * Block width in pixels, this is intended to be accessed through
	 * drm_format_info_block_width()
	 */
	u8 block_w[DRM_FORMAT_MAX_PLANES];

/**
	 * @block_h:
	 *
	 * Block height in pixels, this is intended to be accessed through
	 * drm_format_info_block_height()
	 */
	u8 block_h[DRM_FORMAT_MAX_PLANES];

/** @hsub: Horizontal chroma subsampling factor */
	u8 hsub;
	/** @vsub: Vertical chroma subsampling factor */
	u8 vsub;

/** @has_alpha: Does the format embeds an alpha component? */
	bool has_alpha;

/** @is_yuv: Is it a YUV format? */
	bool is_yuv;
};

/**
 * drm_format_info_is_yuv_packed - check that the format info matches a YUV
 * format with data laid in a single plane
 * @info: format info
 *
 * Returns:
 * A boolean indicating whether the format info matches a packed YUV format.
 */
static inline bool
drm_format_info_is_yuv_packed(const struct drm_format_info *info)
{
	return info->is_yuv && info->num_planes == 1;
}

/**
 * drm_format_info_is_yuv_semiplanar - check that the format info matches a YUV
 * format with data laid in two planes (luminance and chrominance)
 * @info: format info
 *
 * Returns:
 * A boolean indicating whether the format info matches a semiplanar YUV format.
 */
static inline bool
drm_format_info_is_yuv_semiplanar(const struct drm_format_info *info)
{
	return info->is_yuv && info->num_planes == 2;
}

/**
 * drm_format_info_is_yuv_planar - check that the format info matches a YUV
 * format with data laid in three planes (one for each YUV component)
 * @info: format info
 *
 * Returns:
 * A boolean indicating whether the format info matches a planar YUV format.
 */
static inline bool
drm_format_info_is_yuv_planar(const struct drm_format_info *info)
{
	return info->is_yuv && info->num_planes == 3;
}

/**
 * drm_format_info_is_yuv_sampling_410 - check that the format info matches a
 * YUV format with 4:1:0 sub-sampling
 * @info: format info
 *
 * Returns:
 * A boolean indicating whether the format info matches a YUV format with 4:1:0
 * sub-sampling.
 */
static inline bool
drm_format_info_is_yuv_sampling_410(const struct drm_format_info *info)
{
	return info->is_yuv && info->hsub == 4 && info->vsub == 4;
}

/**
 * drm_format_info_is_yuv_sampling_411 - check that the format info matches a
 * YUV format with 4:1:1 sub-sampling
 * @info: format info
 *
 * Returns:
 * A boolean indicating whether the format info matches a YUV format with 4:1:1
 * sub-sampling.
 */
static inline bool
drm_format_info_is_yuv_sampling_411(const struct drm_format_info *info)
{
	return info->is_yuv && info->hsub == 4 && info->vsub == 1;
}

/**
 * drm_format_info_is_yuv_sampling_420 - check that the format info matches a
 * YUV format with 4:2:0 sub-sampling
 * @info: format info
 *
 * Returns:
 * A boolean indicating whether the format info matches a YUV format with 4:2:0
 * sub-sampling.
 */
static inline bool
drm_format_info_is_yuv_sampling_420(const struct drm_format_info *info)
{
	return info->is_yuv && info->hsub == 2 && info->vsub == 2;
}

/**
 * drm_format_info_is_yuv_sampling_422 - check that the format info matches a
 * YUV format with 4:2:2 sub-sampling
 * @info: format info
 *
 * Returns:
 * A boolean indicating whether the format info matches a YUV format with 4:2:2
 * sub-sampling.
 */
static inline bool
drm_format_info_is_yuv_sampling_422(const struct drm_format_info *info)
{
	return info->is_yuv && info->hsub == 2 && info->vsub == 1;
}

/**
 * drm_format_info_is_yuv_sampling_444 - check that the format info matches a
 * YUV format with 4:4:4 sub-sampling
 * @info: format info
 *
 * Returns:
 * A boolean indicating whether the format info matches a YUV format with 4:4:4
 * sub-sampling.
 */
static inline bool
drm_format_info_is_yuv_sampling_444(const struct drm_format_info *info)
{
	return info->is_yuv && info->hsub == 1 && info->vsub == 1;
}

/**
 * drm_format_info_plane_width - width of the plane given the first plane
 * @info: pixel format info
 * @width: width of the first plane
 * @plane: plane index
 *
 * Returns:
 * The width of @plane, given that the width of the first plane is @width.
 */
static inline
int drm_format_info_plane_width(const struct drm_format_info *info, int width,
				int plane)
{
	if (!info || plane >= info->num_planes)
		return 0;

if (plane == 0)
		return width;

return width / info->hsub;
}

/**
 * drm_format_info_plane_height - height of the plane given the first plane
 * @info: pixel format info
 * @height: height of the first plane
 * @plane: plane index
 *
 * Returns:
 * The height of @plane, given that the height of the first plane is @height.
 */
static inline
int drm_format_info_plane_height(const struct drm_format_info *info, int height,
				 int plane)
{
	if (!info || plane >= info->num_planes)
		return 0;

if (plane == 0)
		return height;

return height / info->vsub;
}

const struct drm_format_info *__drm_format_info(u32 format);
const struct drm_format_info *drm_format_info(u32 format);
const struct drm_format_info *
drm_get_format_info(struct drm_device *dev,
		    const struct drm_mode_fb_cmd2 *mode_cmd);
uint32_t drm_mode_legacy_fb_format(uint32_t bpp, uint32_t depth);
uint32_t drm_driver_legacy_fb_format(struct drm_device *dev,
				     uint32_t bpp, uint32_t depth);
unsigned int drm_format_info_block_width(const struct drm_format_info *info,
					 int plane);
unsigned int drm_format_info_block_height(const struct drm_format_info *info,
					  int plane);
uint64_t drm_format_info_min_pitch(const struct drm_format_info *info,
				   int plane, unsigned int buffer_width);

#endif /* __DRM_FOURCC_H__ */

${this.title}

Code Editor : drm_fourcc.h