/*
* Copyright ( c ) 2016 Laurent Pinchart < laurent . pinchart @ ideasonboard . com >
*
* DRM core format related functions
*
* 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 .
*/
#include <linux/bug.h>
#include <linux/ctype.h>
#include <linux/export.h>
#include <linux/kernel.h>
#include <drm/drm_device.h>
#include <drm/drm_fourcc.h>
/**
* drm_mode_legacy_fb_format - compute drm fourcc code from legacy description
* @ bpp : bits per pixels
* @ depth : bit depth per pixel
*
* Computes a drm fourcc pixel format code for the given @ bpp / @ depth values .
*/
uint32_t drm_mode_legacy_fb_format(uint32_t bpp, uint32_t depth)
{
uint32_t fmt = DRM_FORMAT_INVALID;
switch (bpp) {
case 1 :
if (depth == 1 )
fmt = DRM_FORMAT_C1;
break ;
case 2 :
if (depth == 2 )
fmt = DRM_FORMAT_C2;
break ;
case 4 :
if (depth == 4 )
fmt = DRM_FORMAT_C4;
break ;
case 8 :
if (depth == 8 )
fmt = DRM_FORMAT_C8;
break ;
case 16 :
switch (depth) {
case 15 :
fmt = DRM_FORMAT_XRGB1555;
break ;
case 16 :
fmt = DRM_FORMAT_RGB565;
break ;
default :
break ;
}
break ;
case 24 :
if (depth == 24 )
fmt = DRM_FORMAT_RGB888;
break ;
case 32 :
switch (depth) {
case 24 :
fmt = DRM_FORMAT_XRGB8888;
break ;
case 30 :
fmt = DRM_FORMAT_XRGB2101010;
break ;
case 32 :
fmt = DRM_FORMAT_ARGB8888;
break ;
default :
break ;
}
break ;
default :
break ;
}
return fmt;
}
EXPORT_SYMBOL(drm_mode_legacy_fb_format);
/**
* drm_driver_legacy_fb_format - compute drm fourcc code from legacy description
* @ dev : DRM device
* @ bpp : bits per pixels
* @ depth : bit depth per pixel
*
* Computes a drm fourcc pixel format code for the given @ bpp / @ depth values .
* Unlike drm_mode_legacy_fb_format ( ) this looks at the drivers mode_config ,
* and depending on the & drm_mode_config . quirk_addfb_prefer_host_byte_order flag
* it returns little endian byte order or host byte order framebuffer formats .
*/
uint32_t drm_driver_legacy_fb_format(struct drm_device *dev,
uint32_t bpp, uint32_t depth)
{
uint32_t fmt = drm_mode_legacy_fb_format(bpp, depth);
if (dev->mode_config.quirk_addfb_prefer_host_byte_order) {
if (fmt == DRM_FORMAT_XRGB8888)
fmt = DRM_FORMAT_HOST_XRGB8888;
if (fmt == DRM_FORMAT_ARGB8888)
fmt = DRM_FORMAT_HOST_ARGB8888;
if (fmt == DRM_FORMAT_RGB565)
fmt = DRM_FORMAT_HOST_RGB565;
if (fmt == DRM_FORMAT_XRGB1555)
fmt = DRM_FORMAT_HOST_XRGB1555;
}
if (dev->mode_config.quirk_addfb_prefer_xbgr_30bpp &&
fmt == DRM_FORMAT_XRGB2101010)
fmt = DRM_FORMAT_XBGR2101010;
return fmt;
}
EXPORT_SYMBOL(drm_driver_legacy_fb_format);
/**
* drm_driver_color_mode_format - Compute DRM 4 CC code from color mode
* @ dev : DRM device
* @ color_mode : command - line color mode
*
* Computes a DRM 4 CC pixel format code for the given color mode using
* drm_driver_color_mode ( ) . The color mode is in the format used and the
* kernel command line . It specifies the number of bits per pixel
* and color depth in a single value .
*
* Useful in fbdev emulation code , since that deals in those values . The
* helper does not consider YUV or other complicated formats . This means
* only legacy formats are supported ( fmt - > depth is a legacy field ) , but
* the framebuffer emulation can only deal with such formats , specifically
* RGB / BGA formats .
*/
uint32_t drm_driver_color_mode_format(struct drm_device *dev, unsigned int color_mode)
{
switch (color_mode) {
case 15 :
return drm_driver_legacy_fb_format(dev, 16 , 15 );
case 32 :
return drm_driver_legacy_fb_format(dev, 32 , 24 );
default :
return drm_driver_legacy_fb_format(dev, color_mode, color_mode);
}
}
EXPORT_SYMBOL(drm_driver_color_mode_format);
/*
* Internal function to query information for a given format . See
* drm_format_info ( ) for the public API .
*/
const struct drm_format_info *__drm_format_info(u32 format)
{
static const struct drm_format_info formats[] = {
{ .format = DRM_FORMAT_C1, .depth = 1 , .num_planes = 1 ,
.char_per_block = { 1 , }, .block_w = { 8 , }, .block_h = { 1 , }, .hsub = 1 , .vsub = 1 , .is_color_indexed = true },
{ .format = DRM_FORMAT_C2, .depth = 2 , .num_planes = 1 ,
.char_per_block = { 1 , }, .block_w = { 4 , }, .block_h = { 1 , }, .hsub = 1 , .vsub = 1 , .is_color_indexed = true },
{ .format = DRM_FORMAT_C4, .depth = 4 , .num_planes = 1 ,
.char_per_block = { 1 , }, .block_w = { 2 , }, .block_h = { 1 , }, .hsub = 1 , .vsub = 1 , .is_color_indexed = true },
{ .format = DRM_FORMAT_C8, .depth = 8 , .num_planes = 1 , .cpp = { 1 , 0 , 0 }, .hsub = 1 , .vsub = 1 , .is_color_indexed = true },
{ .format = DRM_FORMAT_D1, .depth = 1 , .num_planes = 1 ,
.char_per_block = { 1 , }, .block_w = { 8 , }, .block_h = { 1 , }, .hsub = 1 , .vsub = 1 },
{ .format = DRM_FORMAT_D2, .depth = 2 , .num_planes = 1 ,
.char_per_block = { 1 , }, .block_w = { 4 , }, .block_h = { 1 , }, .hsub = 1 , .vsub = 1 },
{ .format = DRM_FORMAT_D4, .depth = 4 , .num_planes = 1 ,
.char_per_block = { 1 , }, .block_w = { 2 , }, .block_h = { 1 , }, .hsub = 1 , .vsub = 1 },
{ .format = DRM_FORMAT_D8, .depth = 8 , .num_planes = 1 , .cpp = { 1 , 0 , 0 }, .hsub = 1 , .vsub = 1 },
{ .format = DRM_FORMAT_R1, .depth = 1 , .num_planes = 1 ,
.char_per_block = { 1 , }, .block_w = { 8 , }, .block_h = { 1 , }, .hsub = 1 , .vsub = 1 },
{ .format = DRM_FORMAT_R2, .depth = 2 , .num_planes = 1 ,
.char_per_block = { 1 , }, .block_w = { 4 , }, .block_h = { 1 , }, .hsub = 1 , .vsub = 1 },
{ .format = DRM_FORMAT_R4, .depth = 4 , .num_planes = 1 ,
.char_per_block = { 1 , }, .block_w = { 2 , }, .block_h = { 1 , }, .hsub = 1 , .vsub = 1 },
{ .format = DRM_FORMAT_R8, .depth = 8 , .num_planes = 1 , .cpp = { 1 , 0 , 0 }, .hsub = 1 , .vsub = 1 },
{ .format = DRM_FORMAT_R10, .depth = 10 , .num_planes = 1 , .cpp = { 2 , 0 , 0 }, .hsub = 1 , .vsub = 1 },
{ .format = DRM_FORMAT_R12, .depth = 12 , .num_planes = 1 , .cpp = { 2 , 0 , 0 }, .hsub = 1 , .vsub = 1 },
{ .format = DRM_FORMAT_RGB332, .depth = 8 , .num_planes = 1 , .cpp = { 1 , 0 , 0 }, .hsub = 1 , .vsub = 1 },
{ .format = DRM_FORMAT_BGR233, .depth = 8 , .num_planes = 1 , .cpp = { 1 , 0 , 0 }, .hsub = 1 , .vsub = 1 },
{ .format = DRM_FORMAT_XRGB4444, .depth = 0 , .num_planes = 1 , .cpp = { 2 , 0 , 0 }, .hsub = 1 , .vsub = 1 },
{ .format = DRM_FORMAT_XBGR4444, .depth = 0 , .num_planes = 1 , .cpp = { 2 , 0 , 0 }, .hsub = 1 , .vsub = 1 },
{ .format = DRM_FORMAT_RGBX4444, .depth = 0 , .num_planes = 1 , .cpp = { 2 , 0 , 0 }, .hsub = 1 , .vsub = 1 },
{ .format = DRM_FORMAT_BGRX4444, .depth = 0 , .num_planes = 1 , .cpp = { 2 , 0 , 0 }, .hsub = 1 , .vsub = 1 },
{ .format = DRM_FORMAT_ARGB4444, .depth = 0 , .num_planes = 1 , .cpp = { 2 , 0 , 0 }, .hsub = 1 , .vsub = 1 , .has_alpha = true },
{ .format = DRM_FORMAT_ABGR4444, .depth = 0 , .num_planes = 1 , .cpp = { 2 , 0 , 0 }, .hsub = 1 , .vsub = 1 , .has_alpha = true },
{ .format = DRM_FORMAT_RGBA4444, .depth = 0 , .num_planes = 1 , .cpp = { 2 , 0 , 0 }, .hsub = 1 , .vsub = 1 , .has_alpha = true },
{ .format = DRM_FORMAT_BGRA4444, .depth = 0 , .num_planes = 1 , .cpp = { 2 , 0 , 0 }, .hsub = 1 , .vsub = 1 , .has_alpha = true },
{ .format = DRM_FORMAT_XRGB1555, .depth = 15 , .num_planes = 1 , .cpp = { 2 , 0 , 0 }, .hsub = 1 , .vsub = 1 },
{ .format = DRM_FORMAT_XBGR1555, .depth = 15 , .num_planes = 1 , .cpp = { 2 , 0 , 0 }, .hsub = 1 , .vsub = 1 },
{ .format = DRM_FORMAT_RGBX5551, .depth = 15 , .num_planes = 1 , .cpp = { 2 , 0 , 0 }, .hsub = 1 , .vsub = 1 },
{ .format = DRM_FORMAT_BGRX5551, .depth = 15 , .num_planes = 1 , .cpp = { 2 , 0 , 0 }, .hsub = 1 , .vsub = 1 },
{ .format = DRM_FORMAT_ARGB1555, .depth = 15 , .num_planes = 1 , .cpp = { 2 , 0 , 0 }, .hsub = 1 , .vsub = 1 , .has_alpha = true },
{ .format = DRM_FORMAT_ABGR1555, .depth = 15 , .num_planes = 1 , .cpp = { 2 , 0 , 0 }, .hsub = 1 , .vsub = 1 , .has_alpha = true },
{ .format = DRM_FORMAT_RGBA5551, .depth = 15 , .num_planes = 1 , .cpp = { 2 , 0 , 0 }, .hsub = 1 , .vsub = 1 , .has_alpha = true },
{ .format = DRM_FORMAT_BGRA5551, .depth = 15 , .num_planes = 1 , .cpp = { 2 , 0 , 0 }, .hsub = 1 , .vsub = 1 , .has_alpha = true },
{ .format = DRM_FORMAT_RGB565, .depth = 16 , .num_planes = 1 , .cpp = { 2 , 0 , 0 }, .hsub = 1 , .vsub = 1 },
{ .format = DRM_FORMAT_BGR565, .depth = 16 , .num_planes = 1 , .cpp = { 2 , 0 , 0 }, .hsub = 1 , .vsub = 1 },
#ifdef __BIG_ENDIAN
{ .format = DRM_FORMAT_XRGB1555 | DRM_FORMAT_BIG_ENDIAN, .depth = 15 , .num_planes = 1 , .cpp = { 2 , 0 , 0 }, .hsub = 1 , .vsub = 1 },
{ .format = DRM_FORMAT_RGB565 | DRM_FORMAT_BIG_ENDIAN, .depth = 16 , .num_planes = 1 , .cpp = { 2 , 0 , 0 }, .hsub = 1 , .vsub = 1 },
#endif
{ .format = DRM_FORMAT_RGB888, .depth = 24 , .num_planes = 1 , .cpp = { 3 , 0 , 0 }, .hsub = 1 , .vsub = 1 },
{ .format = DRM_FORMAT_BGR888, .depth = 24 , .num_planes = 1 , .cpp = { 3 , 0 , 0 }, .hsub = 1 , .vsub = 1 },
{ .format = DRM_FORMAT_XRGB8888, .depth = 24 , .num_planes = 1 , .cpp = { 4 , 0 , 0 }, .hsub = 1 , .vsub = 1 },
{ .format = DRM_FORMAT_XBGR8888, .depth = 24 , .num_planes = 1 , .cpp = { 4 , 0 , 0 }, .hsub = 1 , .vsub = 1 },
{ .format = DRM_FORMAT_RGBX8888, .depth = 24 , .num_planes = 1 , .cpp = { 4 , 0 , 0 }, .hsub = 1 , .vsub = 1 },
{ .format = DRM_FORMAT_BGRX8888, .depth = 24 , .num_planes = 1 , .cpp = { 4 , 0 , 0 }, .hsub = 1 , .vsub = 1 },
{ .format = DRM_FORMAT_RGB565_A8, .depth = 24 , .num_planes = 2 , .cpp = { 2 , 1 , 0 }, .hsub = 1 , .vsub = 1 , .has_alpha = true },
{ .format = DRM_FORMAT_BGR565_A8, .depth = 24 , .num_planes = 2 , .cpp = { 2 , 1 , 0 }, .hsub = 1 , .vsub = 1 , .has_alpha = true },
{ .format = DRM_FORMAT_XRGB2101010, .depth = 30 , .num_planes = 1 , .cpp = { 4 , 0 , 0 }, .hsub = 1 , .vsub = 1 },
{ .format = DRM_FORMAT_XBGR2101010, .depth = 30 , .num_planes = 1 , .cpp = { 4 , 0 , 0 }, .hsub = 1 , .vsub = 1 },
{ .format = DRM_FORMAT_RGBX1010102, .depth = 30 , .num_planes = 1 , .cpp = { 4 , 0 , 0 }, .hsub = 1 , .vsub = 1 },
{ .format = DRM_FORMAT_BGRX1010102, .depth = 30 , .num_planes = 1 , .cpp = { 4 , 0 , 0 }, .hsub = 1 , .vsub = 1 },
{ .format = DRM_FORMAT_ARGB2101010, .depth = 30 , .num_planes = 1 , .cpp = { 4 , 0 , 0 }, .hsub = 1 , .vsub = 1 , .has_alpha = true },
{ .format = DRM_FORMAT_ABGR2101010, .depth = 30 , .num_planes = 1 , .cpp = { 4 , 0 , 0 }, .hsub = 1 , .vsub = 1 , .has_alpha = true },
{ .format = DRM_FORMAT_RGBA1010102, .depth = 30 , .num_planes = 1 , .cpp = { 4 , 0 , 0 }, .hsub = 1 , .vsub = 1 , .has_alpha = true },
{ .format = DRM_FORMAT_BGRA1010102, .depth = 30 , .num_planes = 1 , .cpp = { 4 , 0 , 0 }, .hsub = 1 , .vsub = 1 , .has_alpha = true },
{ .format = DRM_FORMAT_RGB161616, .depth = 0 ,
.num_planes = 1 , .char_per_block = { 6 , 0 , 0 },
.block_w = { 1 , 0 , 0 }, .block_h = { 1 , 0 , 0 },
.hsub = 1 , .vsub = 1 , .has_alpha = false },
{ .format = DRM_FORMAT_BGR161616, .depth = 0 ,
.num_planes = 1 , .char_per_block = { 6 , 0 , 0 },
.block_w = { 1 , 0 , 0 }, .block_h = { 1 , 0 , 0 },
.hsub = 1 , .vsub = 1 , .has_alpha = false },
{ .format = DRM_FORMAT_ARGB8888, .depth = 32 , .num_planes = 1 , .cpp = { 4 , 0 , 0 }, .hsub = 1 , .vsub = 1 , .has_alpha = true },
{ .format = DRM_FORMAT_ABGR8888, .depth = 32 , .num_planes = 1 , .cpp = { 4 , 0 , 0 }, .hsub = 1 , .vsub = 1 , .has_alpha = true },
{ .format = DRM_FORMAT_RGBA8888, .depth = 32 , .num_planes = 1 , .cpp = { 4 , 0 , 0 }, .hsub = 1 , .vsub = 1 , .has_alpha = true },
{ .format = DRM_FORMAT_BGRA8888, .depth = 32 , .num_planes = 1 , .cpp = { 4 , 0 , 0 }, .hsub = 1 , .vsub = 1 , .has_alpha = true },
{ .format = DRM_FORMAT_XRGB16161616F, .depth = 0 , .num_planes = 1 , .cpp = { 8 , 0 , 0 }, .hsub = 1 , .vsub = 1 },
{ .format = DRM_FORMAT_XBGR16161616F, .depth = 0 , .num_planes = 1 , .cpp = { 8 , 0 , 0 }, .hsub = 1 , .vsub = 1 },
{ .format = DRM_FORMAT_ARGB16161616F, .depth = 0 , .num_planes = 1 , .cpp = { 8 , 0 , 0 }, .hsub = 1 , .vsub = 1 , .has_alpha = true },
{ .format = DRM_FORMAT_ABGR16161616F, .depth = 0 , .num_planes = 1 , .cpp = { 8 , 0 , 0 }, .hsub = 1 , .vsub = 1 , .has_alpha = true },
{ .format = DRM_FORMAT_AXBXGXRX106106106106, .depth = 0 , .num_planes = 1 , .cpp = { 8 , 0 , 0 }, .hsub = 1 , .vsub = 1 , .has_alpha = true },
{ .format = DRM_FORMAT_XRGB16161616, .depth = 0 , .num_planes = 1 , .cpp = { 8 , 0 , 0 }, .hsub = 1 , .vsub = 1 },
{ .format = DRM_FORMAT_XBGR16161616, .depth = 0 , .num_planes = 1 , .cpp = { 8 , 0 , 0 }, .hsub = 1 , .vsub = 1 },
{ .format = DRM_FORMAT_ARGB16161616, .depth = 0 , .num_planes = 1 , .cpp = { 8 , 0 , 0 }, .hsub = 1 , .vsub = 1 , .has_alpha = true },
{ .format = DRM_FORMAT_ABGR16161616, .depth = 0 , .num_planes = 1 , .cpp = { 8 , 0 , 0 }, .hsub = 1 , .vsub = 1 , .has_alpha = true },
{ .format = DRM_FORMAT_RGB888_A8, .depth = 32 , .num_planes = 2 , .cpp = { 3 , 1 , 0 }, .hsub = 1 , .vsub = 1 , .has_alpha = true },
{ .format = DRM_FORMAT_BGR888_A8, .depth = 32 , .num_planes = 2 , .cpp = { 3 , 1 , 0 }, .hsub = 1 , .vsub = 1 , .has_alpha = true },
{ .format = DRM_FORMAT_XRGB8888_A8, .depth = 32 , .num_planes = 2 , .cpp = { 4 , 1 , 0 }, .hsub = 1 , .vsub = 1 , .has_alpha = true },
{ .format = DRM_FORMAT_XBGR8888_A8, .depth = 32 , .num_planes = 2 , .cpp = { 4 , 1 , 0 }, .hsub = 1 , .vsub = 1 , .has_alpha = true },
{ .format = DRM_FORMAT_RGBX8888_A8, .depth = 32 , .num_planes = 2 , .cpp = { 4 , 1 , 0 }, .hsub = 1 , .vsub = 1 , .has_alpha = true },
{ .format = DRM_FORMAT_BGRX8888_A8, .depth = 32 , .num_planes = 2 , .cpp = { 4 , 1 , 0 }, .hsub = 1 , .vsub = 1 , .has_alpha = true },
{ .format = DRM_FORMAT_YUV410, .depth = 0 , .num_planes = 3 , .cpp = { 1 , 1 , 1 }, .hsub = 4 , .vsub = 4 , .is_yuv = true },
{ .format = DRM_FORMAT_YVU410, .depth = 0 , .num_planes = 3 , .cpp = { 1 , 1 , 1 }, .hsub = 4 , .vsub = 4 , .is_yuv = true },
{ .format = DRM_FORMAT_YUV411, .depth = 0 , .num_planes = 3 , .cpp = { 1 , 1 , 1 }, .hsub = 4 , .vsub = 1 , .is_yuv = true },
{ .format = DRM_FORMAT_YVU411, .depth = 0 , .num_planes = 3 , .cpp = { 1 , 1 , 1 }, .hsub = 4 , .vsub = 1 , .is_yuv = true },
{ .format = DRM_FORMAT_YUV420, .depth = 0 , .num_planes = 3 , .cpp = { 1 , 1 , 1 }, .hsub = 2 , .vsub = 2 , .is_yuv = true },
{ .format = DRM_FORMAT_YVU420, .depth = 0 , .num_planes = 3 , .cpp = { 1 , 1 , 1 }, .hsub = 2 , .vsub = 2 , .is_yuv = true },
{ .format = DRM_FORMAT_YUV422, .depth = 0 , .num_planes = 3 , .cpp = { 1 , 1 , 1 }, .hsub = 2 , .vsub = 1 , .is_yuv = true },
{ .format = DRM_FORMAT_YVU422, .depth = 0 , .num_planes = 3 , .cpp = { 1 , 1 , 1 }, .hsub = 2 , .vsub = 1 , .is_yuv = true },
{ .format = DRM_FORMAT_YUV444, .depth = 0 , .num_planes = 3 , .cpp = { 1 , 1 , 1 }, .hsub = 1 , .vsub = 1 , .is_yuv = true },
{ .format = DRM_FORMAT_YVU444, .depth = 0 , .num_planes = 3 , .cpp = { 1 , 1 , 1 }, .hsub = 1 , .vsub = 1 , .is_yuv = true },
{ .format = DRM_FORMAT_NV12, .depth = 0 , .num_planes = 2 , .cpp = { 1 , 2 , 0 }, .hsub = 2 , .vsub = 2 , .is_yuv = true },
{ .format = DRM_FORMAT_NV21, .depth = 0 , .num_planes = 2 , .cpp = { 1 , 2 , 0 }, .hsub = 2 , .vsub = 2 , .is_yuv = true },
{ .format = DRM_FORMAT_NV16, .depth = 0 , .num_planes = 2 , .cpp = { 1 , 2 , 0 }, .hsub = 2 , .vsub = 1 , .is_yuv = true },
{ .format = DRM_FORMAT_NV61, .depth = 0 , .num_planes = 2 , .cpp = { 1 , 2 , 0 }, .hsub = 2 , .vsub = 1 , .is_yuv = true },
{ .format = DRM_FORMAT_NV24, .depth = 0 , .num_planes = 2 , .cpp = { 1 , 2 , 0 }, .hsub = 1 , .vsub = 1 , .is_yuv = true },
{ .format = DRM_FORMAT_NV42, .depth = 0 , .num_planes = 2 , .cpp = { 1 , 2 , 0 }, .hsub = 1 , .vsub = 1 , .is_yuv = true },
{ .format = DRM_FORMAT_YUYV, .depth = 0 , .num_planes = 1 , .cpp = { 2 , 0 , 0 }, .hsub = 2 , .vsub = 1 , .is_yuv = true },
{ .format = DRM_FORMAT_YVYU, .depth = 0 , .num_planes = 1 , .cpp = { 2 , 0 , 0 }, .hsub = 2 , .vsub = 1 , .is_yuv = true },
{ .format = DRM_FORMAT_UYVY, .depth = 0 , .num_planes = 1 , .cpp = { 2 , 0 , 0 }, .hsub = 2 , .vsub = 1 , .is_yuv = true },
{ .format = DRM_FORMAT_VYUY, .depth = 0 , .num_planes = 1 , .cpp = { 2 , 0 , 0 }, .hsub = 2 , .vsub = 1 , .is_yuv = true },
{ .format = DRM_FORMAT_XYUV8888, .depth = 0 , .num_planes = 1 , .cpp = { 4 , 0 , 0 }, .hsub = 1 , .vsub = 1 , .is_yuv = true },
{ .format = DRM_FORMAT_VUY888, .depth = 0 , .num_planes = 1 , .cpp = { 3 , 0 , 0 }, .hsub = 1 , .vsub = 1 , .is_yuv = true },
{ .format = DRM_FORMAT_AYUV, .depth = 0 , .num_planes = 1 , .cpp = { 4 , 0 , 0 }, .hsub = 1 , .vsub = 1 , .has_alpha = true , .is_yuv = true },
{ .format = DRM_FORMAT_Y210, .depth = 0 , .num_planes = 1 , .cpp = { 4 , 0 , 0 }, .hsub = 2 , .vsub = 1 , .is_yuv = true },
{ .format = DRM_FORMAT_Y212, .depth = 0 , .num_planes = 1 , .cpp = { 4 , 0 , 0 }, .hsub = 2 , .vsub = 1 , .is_yuv = true },
{ .format = DRM_FORMAT_Y216, .depth = 0 , .num_planes = 1 , .cpp = { 4 , 0 , 0 }, .hsub = 2 , .vsub = 1 , .is_yuv = true },
{ .format = DRM_FORMAT_Y410, .depth = 0 , .num_planes = 1 , .cpp = { 4 , 0 , 0 }, .hsub = 1 , .vsub = 1 , .has_alpha = true , .is_yuv = true },
{ .format = DRM_FORMAT_Y412, .depth = 0 , .num_planes = 1 , .cpp = { 8 , 0 , 0 }, .hsub = 1 , .vsub = 1 , .has_alpha = true , .is_yuv = true },
{ .format = DRM_FORMAT_Y416, .depth = 0 , .num_planes = 1 , .cpp = { 8 , 0 , 0 }, .hsub = 1 , .vsub = 1 , .has_alpha = true , .is_yuv = true },
{ .format = DRM_FORMAT_XVYU2101010, .depth = 0 , .num_planes = 1 , .cpp = { 4 , 0 , 0 }, .hsub = 1 , .vsub = 1 , .is_yuv = true },
{ .format = DRM_FORMAT_XVYU12_16161616, .depth = 0 , .num_planes = 1 , .cpp = { 8 , 0 , 0 }, .hsub = 1 , .vsub = 1 , .is_yuv = true },
{ .format = DRM_FORMAT_XVYU16161616, .depth = 0 , .num_planes = 1 , .cpp = { 8 , 0 , 0 }, .hsub = 1 , .vsub = 1 , .is_yuv = true },
{ .format = DRM_FORMAT_Y0L0, .depth = 0 , .num_planes = 1 ,
.char_per_block = { 8 , 0 , 0 }, .block_w = { 2 , 0 , 0 }, .block_h = { 2 , 0 , 0 },
.hsub = 2 , .vsub = 2 , .has_alpha = true , .is_yuv = true },
{ .format = DRM_FORMAT_X0L0, .depth = 0 , .num_planes = 1 ,
.char_per_block = { 8 , 0 , 0 }, .block_w = { 2 , 0 , 0 }, .block_h = { 2 , 0 , 0 },
.hsub = 2 , .vsub = 2 , .is_yuv = true },
{ .format = DRM_FORMAT_Y0L2, .depth = 0 , .num_planes = 1 ,
.char_per_block = { 8 , 0 , 0 }, .block_w = { 2 , 0 , 0 }, .block_h = { 2 , 0 , 0 },
.hsub = 2 , .vsub = 2 , .has_alpha = true , .is_yuv = true },
{ .format = DRM_FORMAT_X0L2, .depth = 0 , .num_planes = 1 ,
.char_per_block = { 8 , 0 , 0 }, .block_w = { 2 , 0 , 0 }, .block_h = { 2 , 0 , 0 },
.hsub = 2 , .vsub = 2 , .is_yuv = true },
{ .format = DRM_FORMAT_P010, .depth = 0 , .num_planes = 2 ,
.char_per_block = { 2 , 4 , 0 }, .block_w = { 1 , 1 , 0 }, .block_h = { 1 , 1 , 0 },
.hsub = 2 , .vsub = 2 , .is_yuv = true },
{ .format = DRM_FORMAT_P012, .depth = 0 , .num_planes = 2 ,
.char_per_block = { 2 , 4 , 0 }, .block_w = { 1 , 1 , 0 }, .block_h = { 1 , 1 , 0 },
.hsub = 2 , .vsub = 2 , .is_yuv = true },
{ .format = DRM_FORMAT_P016, .depth = 0 , .num_planes = 2 ,
.char_per_block = { 2 , 4 , 0 }, .block_w = { 1 , 1 , 0 }, .block_h = { 1 , 1 , 0 },
.hsub = 2 , .vsub = 2 , .is_yuv = true },
{ .format = DRM_FORMAT_P210, .depth = 0 ,
.num_planes = 2 , .char_per_block = { 2 , 4 , 0 },
.block_w = { 1 , 1 , 0 }, .block_h = { 1 , 1 , 0 }, .hsub = 2 ,
.vsub = 1 , .is_yuv = true },
{ .format = DRM_FORMAT_VUY101010, .depth = 0 ,
.num_planes = 1 , .cpp = { 0 , 0 , 0 }, .hsub = 1 , .vsub = 1 ,
.is_yuv = true },
{ .format = DRM_FORMAT_YUV420_8BIT, .depth = 0 ,
.num_planes = 1 , .cpp = { 0 , 0 , 0 }, .hsub = 2 , .vsub = 2 ,
.is_yuv = true },
{ .format = DRM_FORMAT_YUV420_10BIT, .depth = 0 ,
.num_planes = 1 , .cpp = { 0 , 0 , 0 }, .hsub = 2 , .vsub = 2 ,
.is_yuv = true },
{ .format = DRM_FORMAT_NV15, .depth = 0 ,
.num_planes = 2 , .char_per_block = { 5 , 5 , 0 },
.block_w = { 4 , 2 , 0 }, .block_h = { 1 , 1 , 0 }, .hsub = 2 ,
.vsub = 2 , .is_yuv = true },
{ .format = DRM_FORMAT_NV20, .depth = 0 ,
.num_planes = 2 , .char_per_block = { 5 , 5 , 0 },
.block_w = { 4 , 2 , 0 }, .block_h = { 1 , 1 , 0 }, .hsub = 2 ,
.vsub = 1 , .is_yuv = true },
{ .format = DRM_FORMAT_NV30, .depth = 0 ,
.num_planes = 2 , .char_per_block = { 5 , 5 , 0 },
.block_w = { 4 , 2 , 0 }, .block_h = { 1 , 1 , 0 }, .hsub = 1 ,
.vsub = 1 , .is_yuv = true },
{ .format = DRM_FORMAT_Q410, .depth = 0 ,
.num_planes = 3 , .char_per_block = { 2 , 2 , 2 },
.block_w = { 1 , 1 , 1 }, .block_h = { 1 , 1 , 1 }, .hsub = 1 ,
.vsub = 1 , .is_yuv = true },
{ .format = DRM_FORMAT_Q401, .depth = 0 ,
.num_planes = 3 , .char_per_block = { 2 , 2 , 2 },
.block_w = { 1 , 1 , 1 }, .block_h = { 1 , 1 , 1 }, .hsub = 1 ,
.vsub = 1 , .is_yuv = true },
{ .format = DRM_FORMAT_P030, .depth = 0 , .num_planes = 2 ,
.char_per_block = { 4 , 8 , 0 }, .block_w = { 3 , 3 , 0 }, .block_h = { 1 , 1 , 0 },
.hsub = 2 , .vsub = 2 , .is_yuv = true },
{ .format = DRM_FORMAT_S010, .depth = 0 , .num_planes = 3 ,
.char_per_block = { 2 , 2 , 2 }, .block_w = { 1 , 1 , 1 }, .block_h = { 1 , 1 , 1 },
.hsub = 2 , .vsub = 2 , .is_yuv = true },
{ .format = DRM_FORMAT_S210, .depth = 0 , .num_planes = 3 ,
.char_per_block = { 2 , 2 , 2 }, .block_w = { 1 , 1 , 1 }, .block_h = { 1 , 1 , 1 },
.hsub = 2 , .vsub = 1 , .is_yuv = true },
{ .format = DRM_FORMAT_S410, .depth = 0 , .num_planes = 3 ,
.char_per_block = { 2 , 2 , 2 }, .block_w = { 1 , 1 , 1 }, .block_h = { 1 , 1 , 1 },
.hsub = 1 , .vsub = 1 , .is_yuv = true },
{ .format = DRM_FORMAT_S012, .depth = 0 , .num_planes = 3 ,
.char_per_block = { 2 , 2 , 2 }, .block_w = { 1 , 1 , 1 }, .block_h = { 1 , 1 , 1 },
.hsub = 2 , .vsub = 2 , .is_yuv = true },
{ .format = DRM_FORMAT_S212, .depth = 0 , .num_planes = 3 ,
.char_per_block = { 2 , 2 , 2 }, .block_w = { 1 , 1 , 1 }, .block_h = { 1 , 1 , 1 },
.hsub = 2 , .vsub = 1 , .is_yuv = true },
{ .format = DRM_FORMAT_S412, .depth = 0 , .num_planes = 3 ,
.char_per_block = { 2 , 2 , 2 }, .block_w = { 1 , 1 , 1 }, .block_h = { 1 , 1 , 1 },
.hsub = 1 , .vsub = 1 , .is_yuv = true },
{ .format = DRM_FORMAT_S016, .depth = 0 , .num_planes = 3 ,
.char_per_block = { 2 , 2 , 2 }, .block_w = { 1 , 1 , 1 }, .block_h = { 1 , 1 , 1 },
.hsub = 2 , .vsub = 2 , .is_yuv = true },
{ .format = DRM_FORMAT_S216, .depth = 0 , .num_planes = 3 ,
.char_per_block = { 2 , 2 , 2 }, .block_w = { 1 , 1 , 1 }, .block_h = { 1 , 1 , 1 },
.hsub = 2 , .vsub = 1 , .is_yuv = true },
{ .format = DRM_FORMAT_S416, .depth = 0 , .num_planes = 3 ,
.char_per_block = { 2 , 2 , 2 }, .block_w = { 1 , 1 , 1 }, .block_h = { 1 , 1 , 1 },
.hsub = 1 , .vsub = 1 , .is_yuv = true },
};
unsigned int i;
for (i = 0 ; i < ARRAY_SIZE(formats); ++i) {
if (formats[i].format == format)
return &formats[i];
}
return NULL;
}
/**
* drm_format_info - query information for a given format
* @ format : pixel format ( DRM_FORMAT_ * )
*
* The caller should only pass a supported pixel format to this function .
* Unsupported pixel formats will generate a warning in the kernel log .
*
* Returns :
* The instance of struct drm_format_info that describes the pixel format , or
* NULL if the format is unsupported .
*/
const struct drm_format_info *drm_format_info(u32 format)
{
const struct drm_format_info *info;
info = __drm_format_info(format);
WARN_ON(!info);
return info;
}
EXPORT_SYMBOL(drm_format_info);
/**
* drm_get_format_info - query information for a given framebuffer configuration
* @ dev : DRM device
* @ pixel_format : pixel format ( DRM_FORMAT_ * )
* @ modifier : modifier
*
* Returns :
* The instance of struct drm_format_info that describes the pixel format , or
* NULL if the format is unsupported .
*/
const struct drm_format_info *
drm_get_format_info(struct drm_device *dev,
u32 pixel_format, u64 modifier)
{
const struct drm_format_info *info = NULL;
if (dev->mode_config.funcs->get_format_info)
info = dev->mode_config.funcs->get_format_info(pixel_format,
modifier);
if (!info)
info = drm_format_info(pixel_format);
return info;
}
EXPORT_SYMBOL(drm_get_format_info);
/**
* drm_format_info_block_width - width in pixels of block .
* @ info : pixel format info
* @ plane : plane index
*
* Returns :
* The width in pixels of a block , depending on the plane index .
*/
unsigned int drm_format_info_block_width(const struct drm_format_info *info,
int plane)
{
if (!info || plane < 0 || plane >= info->num_planes)
return 0 ;
if (!info->block_w[plane])
return 1 ;
return info->block_w[plane];
}
EXPORT_SYMBOL(drm_format_info_block_width);
/**
* drm_format_info_block_height - height in pixels of a block
* @ info : pixel format info
* @ plane : plane index
*
* Returns :
* The height in pixels of a block , depending on the plane index .
*/
unsigned int drm_format_info_block_height(const struct drm_format_info *info,
int plane)
{
if (!info || plane < 0 || plane >= info->num_planes)
return 0 ;
if (!info->block_h[plane])
return 1 ;
return info->block_h[plane];
}
EXPORT_SYMBOL(drm_format_info_block_height);
/**
* drm_format_info_bpp - number of bits per pixel
* @ info : pixel format info
* @ plane : plane index
*
* Returns :
* The actual number of bits per pixel , depending on the plane index .
*/
unsigned int drm_format_info_bpp(const struct drm_format_info *info, int plane)
{
if (!info || plane < 0 || plane >= info->num_planes)
return 0 ;
return info->char_per_block[plane] * 8 /
(drm_format_info_block_width(info, plane) *
drm_format_info_block_height(info, plane));
}
EXPORT_SYMBOL(drm_format_info_bpp);
/**
* drm_format_info_min_pitch - computes the minimum required pitch in bytes
* @ info : pixel format info
* @ plane : plane index
* @ buffer_width : buffer width in pixels
*
* Returns :
* The minimum required pitch in bytes for a buffer by taking into consideration
* the pixel format information and the buffer width .
*/
uint64_t drm_format_info_min_pitch(const struct drm_format_info *info,
int plane, unsigned int buffer_width)
{
if (!info || plane < 0 || plane >= info->num_planes)
return 0 ;
return DIV_ROUND_UP_ULL((u64)buffer_width * info->char_per_block[plane],
drm_format_info_block_width(info, plane) *
drm_format_info_block_height(info, plane));
}
EXPORT_SYMBOL(drm_format_info_min_pitch);
Messung V0.5 in Prozent C=97 H=98 G=97
¤ Dauer der Verarbeitung: 0.16 Sekunden
(vorverarbeitet am 2026-09-28)
¤
*© Formatika GbR, Deutschland