From: Philipp Zabel <p.zabel@xxxxxxxxxxxxxx>
Merge yuv_formats and rgb_formats into a single array. Always loop over
all entries, skipping those that do not match the requested search
criteria. This simplifies the code, lets us get rid of the manual
counting of array entries, and stops accidentally ignoring some non-mbus
RGB formats.
Add comment headers that describe functions find_format() and
enum_format() and their arguments.
Before:
$ v4l2-ctl -d /dev/video14 --list-formats-out
ioctl: VIDIOC_ENUM_FMT
Type: Video Output
[0]: 'UYVY' (UYVY 4:2:2)
[1]: 'YUYV' (YUYV 4:2:2)
[2]: 'YU12' (Planar YUV 4:2:0)
[3]: 'YV12' (Planar YVU 4:2:0)
[4]: '422P' (Planar YUV 4:2:2)
[5]: 'NV12' (Y/CbCr 4:2:0)
[6]: 'NV16' (Y/CbCr 4:2:2)
[7]: 'RGBP' (16-bit RGB 5-6-5)
[8]: 'RGB3' (24-bit RGB 8-8-8)
[9]: 'BX24' (32-bit XRGB 8-8-8-8)
After:
$ v4l2-ctl -d /dev/video14 --list-formats-out
ioctl: VIDIOC_ENUM_FMT
Type: Video Output
[0]: 'UYVY' (UYVY 4:2:2)
[1]: 'YUYV' (YUYV 4:2:2)
[2]: 'YU12' (Planar YUV 4:2:0)
[3]: 'YV12' (Planar YVU 4:2:0)
[4]: '422P' (Planar YUV 4:2:2)
[5]: 'NV12' (Y/CbCr 4:2:0)
[6]: 'NV16' (Y/CbCr 4:2:2)
[7]: 'RGBP' (16-bit RGB 5-6-5)
[8]: 'RGB3' (24-bit RGB 8-8-8)
[9]: 'BGR3' (24-bit BGR 8-8-8)
[10]: 'BX24' (32-bit XRGB 8-8-8-8)
[11]: 'XR24' (32-bit BGRX 8-8-8-8)
[12]: 'RX24' (32-bit XBGR 8-8-8-8)
[13]: 'XB24' (32-bit RGBX 8-8-8-8)
slongerbeam:
- Renamed index j in enum_format() to "match_index", which makes it more
clear that this is a count of the pixel_formats[] entries that match the
requested search criteria.
- Fixed compile warnings:
drivers/staging/media/imx/imx-media-utils.c: In function ‘find_format’:
drivers/staging/media/imx/imx-media-utils.c:232:40: warning: comparison between ‘const enum ipu_color_space’ and ‘enum codespace_sel’
[-Wenum-compare]
232 | if ((cs_sel != CS_SEL_ANY && fmt->cs != cs_sel) ||
| ^~
Signed-off-by: Philipp Zabel <p.zabel@xxxxxxxxxxxxxx>
Signed-off-by: Steve Longerbeam <slongerbeam@xxxxxxxxx>
---
drivers/staging/media/imx/imx-media-utils.c | 179 ++++++--------------
1 file changed, 53 insertions(+), 126 deletions(-)
diff --git a/drivers/staging/media/imx/imx-media-utils.c b/drivers/staging/media/imx/imx-media-utils.c
index fae981698c49..8ff175b08836 100644
--- a/drivers/staging/media/imx/imx-media-utils.c
+++ b/drivers/staging/media/imx/imx-media-utils.c
@@ -9,12 +9,9 @@
/*
* List of supported pixel formats for the subdevs.
- *
- * In all of these tables, the non-mbus formats (with no
- * mbus codes) must all fall at the end of the table.
*/
-
-static const struct imx_media_pixfmt yuv_formats[] = {
+static const struct imx_media_pixfmt pixel_formats[] = {
+ /*** YUV formats start here ***/
{
.fourcc = V4L2_PIX_FMT_UYVY,
.codes = {
@@ -31,12 +28,7 @@ static const struct imx_media_pixfmt yuv_formats[] = {
},
.cs = IPUV3_COLORSPACE_YUV,
.bpp = 16,
- },
- /***
- * non-mbus YUV formats start here. NOTE! when adding non-mbus
- * formats, NUM_NON_MBUS_YUV_FORMATS must be updated below.
- ***/
- {
+ }, {
.fourcc = V4L2_PIX_FMT_YUV420,
.cs = IPUV3_COLORSPACE_YUV,
.bpp = 12,
@@ -62,13 +54,7 @@ static const struct imx_media_pixfmt yuv_formats[] = {
.bpp = 16,
.planar = true,
},
-};
-
-#define NUM_NON_MBUS_YUV_FORMATS 5
-#define NUM_YUV_FORMATS ARRAY_SIZE(yuv_formats)
-#define NUM_MBUS_YUV_FORMATS (NUM_YUV_FORMATS - NUM_NON_MBUS_YUV_FORMATS)
-
-static const struct imx_media_pixfmt rgb_formats[] = {
+ /*** RGB formats start here ***/
{
.fourcc = V4L2_PIX_FMT_RGB565,
.codes = {MEDIA_BUS_FMT_RGB565_2X8_LE},
@@ -83,12 +69,28 @@ static const struct imx_media_pixfmt rgb_formats[] = {
},
.cs = IPUV3_COLORSPACE_RGB,
.bpp = 24,
+ }, {
+ .fourcc = V4L2_PIX_FMT_BGR24,
+ .cs = IPUV3_COLORSPACE_RGB,
+ .bpp = 24,
}, {
.fourcc = V4L2_PIX_FMT_XRGB32,
.codes = {MEDIA_BUS_FMT_ARGB8888_1X32},
.cs = IPUV3_COLORSPACE_RGB,
.bpp = 32,
.ipufmt = true,
+ }, {
+ .fourcc = V4L2_PIX_FMT_XBGR32,
+ .cs = IPUV3_COLORSPACE_RGB,
+ .bpp = 32,
+ }, {
+ .fourcc = V4L2_PIX_FMT_BGRX32,
+ .cs = IPUV3_COLORSPACE_RGB,
+ .bpp = 32,
+ }, {
+ .fourcc = V4L2_PIX_FMT_RGBX32,
+ .cs = IPUV3_COLORSPACE_RGB,
+ .bpp = 32,
},
/*** raw bayer and grayscale formats start here ***/
{
@@ -182,33 +184,8 @@ static const struct imx_media_pixfmt rgb_formats[] = {
.bpp = 16,
.bayer = true,
},
- /***
- * non-mbus RGB formats start here. NOTE! when adding non-mbus
- * formats, NUM_NON_MBUS_RGB_FORMATS must be updated below.
- ***/
- {
- .fourcc = V4L2_PIX_FMT_BGR24,
- .cs = IPUV3_COLORSPACE_RGB,
- .bpp = 24,
- }, {
- .fourcc = V4L2_PIX_FMT_XBGR32,
- .cs = IPUV3_COLORSPACE_RGB,
- .bpp = 32,
- }, {
- .fourcc = V4L2_PIX_FMT_BGRX32,
- .cs = IPUV3_COLORSPACE_RGB,
- .bpp = 32,
- }, {
- .fourcc = V4L2_PIX_FMT_RGBX32,
- .cs = IPUV3_COLORSPACE_RGB,
- .bpp = 32,
- },
};
-#define NUM_NON_MBUS_RGB_FORMATS 2
-#define NUM_RGB_FORMATS ARRAY_SIZE(rgb_formats)
-#define NUM_MBUS_RGB_FORMATS (NUM_RGB_FORMATS - NUM_NON_MBUS_RGB_FORMATS)
-
static const struct imx_media_pixfmt ipu_yuv_formats[] = {
{
.fourcc = V4L2_PIX_FMT_YUV32,
@@ -246,21 +223,24 @@ static void init_mbus_colorimetry(struct v4l2_mbus_framefmt *mbus,
mbus->ycbcr_enc);
}
-static const
-struct imx_media_pixfmt *__find_format(u32 fourcc,
- u32 code,
- bool allow_non_mbus,
- bool allow_bayer,
- const struct imx_media_pixfmt *array,
- u32 array_size)
+static const struct imx_media_pixfmt *find_format(u32 fourcc,
+ u32 code,
+ enum codespace_sel cs_sel,
+ bool allow_non_mbus,
+ bool allow_bayer)
{
const struct imx_media_pixfmt *fmt;
int i, j;
- for (i = 0; i < array_size; i++) {
- fmt = &array[i];
+ for (i = 0; i < ARRAY_SIZE(pixel_formats); i++) {
+ enum codespace_sel fmt_cs_sel;
- if ((!allow_non_mbus && !fmt->codes[0]) ||
+ fmt = &pixel_formats[i];
+ fmt_cs_sel = (fmt->cs == IPUV3_COLORSPACE_YUV) ?
+ CS_SEL_YUV : CS_SEL_RGB;
+
+ if ((cs_sel != CS_SEL_ANY && fmt_cs_sel != cs_sel) ||
+ (!allow_non_mbus && !fmt->codes[0]) ||
(!allow_bayer && fmt->bayer))
continue;
@@ -270,7 +250,7 @@ struct imx_media_pixfmt *__find_format(u32 fourcc,
if (!code)
continue;
- for (j = 0; fmt->codes[j]; j++) {
+ for (j = 0; j < ARRAY_SIZE(fmt->codes) && fmt->codes[j]; j++) {
if (code == fmt->codes[j])
return fmt;
}
@@ -278,86 +258,33 @@ struct imx_media_pixfmt *__find_format(u32 fourcc,
return NULL;
}
-static const struct imx_media_pixfmt *find_format(u32 fourcc,
- u32 code,
- enum codespace_sel cs_sel,
- bool allow_non_mbus,
- bool allow_bayer)
-{
- const struct imx_media_pixfmt *ret;
-
- switch (cs_sel) {
- case CS_SEL_YUV:
- return __find_format(fourcc, code, allow_non_mbus, allow_bayer,
- yuv_formats, NUM_YUV_FORMATS);
- case CS_SEL_RGB:
- return __find_format(fourcc, code, allow_non_mbus, allow_bayer,
- rgb_formats, NUM_RGB_FORMATS);
- case CS_SEL_ANY:
- ret = __find_format(fourcc, code, allow_non_mbus, allow_bayer,
- yuv_formats, NUM_YUV_FORMATS);
- if (ret)
- return ret;
- return __find_format(fourcc, code, allow_non_mbus, allow_bayer,
- rgb_formats, NUM_RGB_FORMATS);
- default:
- return NULL;
- }
-}
-
static int enum_format(u32 *fourcc, u32 *code, u32 index,
enum codespace_sel cs_sel,
bool allow_non_mbus,
bool allow_bayer)
{
const struct imx_media_pixfmt *fmt;
- u32 mbus_yuv_sz = NUM_MBUS_YUV_FORMATS;
- u32 mbus_rgb_sz = NUM_MBUS_RGB_FORMATS;
- u32 yuv_sz = NUM_YUV_FORMATS;
- u32 rgb_sz = NUM_RGB_FORMATS;
+ unsigned int i, match_index = 0;
- switch (cs_sel) {
- case CS_SEL_YUV:
- if (index >= yuv_sz ||
- (!allow_non_mbus && index >= mbus_yuv_sz))
- return -EINVAL;
- fmt = &yuv_formats[index];
- break;
- case CS_SEL_RGB:
- if (index >= rgb_sz ||
- (!allow_non_mbus && index >= mbus_rgb_sz))
- return -EINVAL;
- fmt = &rgb_formats[index];
- if (!allow_bayer && fmt->bayer)
- return -EINVAL;
- break;
- case CS_SEL_ANY:
- if (!allow_non_mbus) {
- if (index >= mbus_yuv_sz) {
- index -= mbus_yuv_sz;
- if (index >= mbus_rgb_sz)
- return -EINVAL;
- fmt = &rgb_formats[index];
- if (!allow_bayer && fmt->bayer)
- return -EINVAL;
- } else {
- fmt = &yuv_formats[index];
- }
- } else {
- if (index >= yuv_sz + rgb_sz)
- return -EINVAL;
- if (index >= yuv_sz) {
- fmt = &rgb_formats[index - yuv_sz];
- if (!allow_bayer && fmt->bayer)
- return -EINVAL;
- } else {
- fmt = &yuv_formats[index];
- }
- }
- break;
- default:
- return -EINVAL;
+ for (i = 0; i < ARRAY_SIZE(pixel_formats); i++) {
+ enum codespace_sel fmt_cs_sel;
+
+ fmt = &pixel_formats[i];
+ fmt_cs_sel = (fmt->cs == IPUV3_COLORSPACE_YUV) ?
+ CS_SEL_YUV : CS_SEL_RGB;
+
+ if ((cs_sel != CS_SEL_ANY && fmt_cs_sel != cs_sel) ||
+ (!allow_non_mbus && !fmt->codes[0]) ||
+ (!allow_bayer && fmt->bayer))
+ continue;
+
+ if (index == match_index)
+ break;
+
+ match_index++;
}
+ if (i == ARRAY_SIZE(pixel_formats))
+ return -EINVAL;
if (fourcc)
*fourcc = fmt->fourcc;
--
2.17.1
