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[media] pwc: Make decoder data part of the main pwc struct 

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Hans de Goede 2012-01-08 11:29:19 -03:00 committed by Mauro Carvalho Chehab
parent 54d3fb3b11
commit 56ae24aad8
7 changed files with 35 additions and 60 deletions
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15
drivers/media/video/pwc/pwc-ctrl.c
View File

@ -213,9 +213,7 @@ static int set_video_mode_Nala(struct pwc_device *pdev, int size, int frames,
return ret;
}
if (pEntry->compressed && pdev->pixfmt == V4L2_PIX_FMT_YUV420) {
ret = pwc_dec1_init(pdev, pdev->type, pdev->release, buf);
if (ret < 0)
return ret;
pwc_dec1_init(pdev, buf);
}
pdev->cmd_len = 3;
@ -281,9 +279,7 @@ static int set_video_mode_Timon(struct pwc_device *pdev, int size, int frames,
return ret;
if (pChoose->bandlength > 0 && pdev->pixfmt == V4L2_PIX_FMT_YUV420) {
ret = pwc_dec23_init(pdev, pdev->type, buf);
if (ret < 0)
return ret;
pwc_dec23_init(pdev, buf);
}
pdev->cmd_len = 13;
@ -341,9 +337,7 @@ static int set_video_mode_Kiara(struct pwc_device *pdev, int size, int frames,
return ret;
if (pChoose->bandlength > 0 && pdev->pixfmt == V4L2_PIX_FMT_YUV420) {
ret = pwc_dec23_init(pdev, pdev->type, buf);
if (ret < 0)
return ret;
pwc_dec23_init(pdev, buf);
}
pdev->cmd_len = 12;
@ -368,7 +362,8 @@ int pwc_set_video_mode(struct pwc_device *pdev, int width, int height,
{
int ret, size;
PWC_DEBUG_FLOW("set_video_mode(%dx%d @ %d, pixfmt %08x).\n", width, height, frames, pdev->pixfmt);
PWC_DEBUG_FLOW("set_video_mode(%dx%d @ %d, pixfmt %08x).\n",
width, height, frames, pdev->pixfmt);
size = pwc_get_size(pdev, width, height);
PWC_TRACE("decode_size = %d.\n", size);

16
drivers/media/video/pwc/pwc-dec1.c
View File

@ -22,19 +22,11 @@
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "pwc-dec1.h"
#include "pwc.h"
int pwc_dec1_init(struct pwc_device *pwc, int type, int release, void *buffer)
void pwc_dec1_init(struct pwc_device *pdev, void *buffer)
{
struct pwc_dec1_private *pdec;
struct pwc_dec1_private *pdec = &pdev->dec1;
if (pwc->decompress_data == NULL) {
pdec = kmalloc(sizeof(struct pwc_dec1_private), GFP_KERNEL);
if (pdec == NULL)
return -ENOMEM;
pwc->decompress_data = pdec;
}
pdec = pwc->decompress_data;
return 0;
pdec->version = pdev->release;
}

6
drivers/media/video/pwc/pwc-dec1.h
View File

@ -25,13 +25,15 @@
#ifndef PWC_DEC1_H
#define PWC_DEC1_H
#include "pwc.h"
#include <linux/mutex.h>
struct pwc_device;
struct pwc_dec1_private
{
int version;
};
int pwc_dec1_init(struct pwc_device *pwc, int type, int release, void *buffer);
void pwc_dec1_init(struct pwc_device *pdev, void *buffer);
#endif

37
drivers/media/video/pwc/pwc-dec23.c
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@ -294,22 +294,14 @@ static unsigned char pwc_crop_table[256 + 2*MAX_OUTER_CROP_VALUE];
/* If the type or the command change, we rebuild the lookup table */
int pwc_dec23_init(struct pwc_device *pwc, int type, unsigned char *cmd)
void pwc_dec23_init(struct pwc_device *pdev, unsigned char *cmd)
{
int flags, version, shift, i;
struct pwc_dec23_private *pdec;
if (pwc->decompress_data == NULL) {
pdec = kmalloc(sizeof(struct pwc_dec23_private), GFP_KERNEL);
if (pdec == NULL)
return -ENOMEM;
pwc->decompress_data = pdec;
}
pdec = pwc->decompress_data;
struct pwc_dec23_private *pdec = &pdev->dec23;
mutex_init(&pdec->lock);
if (DEVICE_USE_CODEC3(type)) {
if (DEVICE_USE_CODEC3(pdev->type)) {
flags = cmd[2] & 0x18;
if (flags == 8)
pdec->nbits = 7; /* More bits, mean more bits to encode the stream, but better quality */
@ -355,8 +347,6 @@ int pwc_dec23_init(struct pwc_device *pwc, int type, unsigned char *cmd)
for (i=0; i<MAX_OUTER_CROP_VALUE; i++)
pwc_crop_table[MAX_OUTER_CROP_VALUE+256+i] = 255;
#endif
return 0;
}
/*
@ -659,12 +649,12 @@ static void DecompressBand23(struct pwc_dec23_private *pdec,
* src: raw data
* dst: image output
*/
void pwc_dec23_decompress(const struct pwc_device *pwc,
void pwc_dec23_decompress(struct pwc_device *pdev,
const void *src,
void *dst)
{
int bandlines_left, bytes_per_block;
struct pwc_dec23_private *pdec = pwc->decompress_data;
struct pwc_dec23_private *pdec = &pdev->dec23;
/* YUV420P image format */
unsigned char *pout_planar_y;
@ -674,23 +664,22 @@ void pwc_dec23_decompress(const struct pwc_device *pwc,
mutex_lock(&pdec->lock);
bandlines_left = pwc->height / 4;
bytes_per_block = pwc->width * 4;
plane_size = pwc->height * pwc->width;
bandlines_left = pdev->height / 4;
bytes_per_block = pdev->width * 4;
plane_size = pdev->height * pdev->width;
pout_planar_y = dst;
pout_planar_u = dst + plane_size;
pout_planar_v = dst + plane_size + plane_size / 4;
while (bandlines_left--) {
DecompressBand23(pwc->decompress_data,
src,
DecompressBand23(pdec, src,
pout_planar_y, pout_planar_u, pout_planar_v,
pwc->width, pwc->width);
src += pwc->vbandlength;
pdev->width, pdev->width);
src += pdev->vbandlength;
pout_planar_y += bytes_per_block;
pout_planar_u += pwc->width;
pout_planar_v += pwc->width;
pout_planar_u += pdev->width;
pout_planar_v += pdev->width;
}
mutex_unlock(&pdec->lock);
}

6
drivers/media/video/pwc/pwc-dec23.h
View File

@ -25,7 +25,7 @@
#ifndef PWC_DEC23_H
#define PWC_DEC23_H
#include "pwc.h"
struct pwc_device;
struct pwc_dec23_private
{
@ -51,8 +51,8 @@ struct pwc_dec23_private
};
int pwc_dec23_init(struct pwc_device *pwc, int type, unsigned char *cmd);
void pwc_dec23_decompress(const struct pwc_device *pwc,
void pwc_dec23_init(struct pwc_device *pdev, unsigned char *cmd);
void pwc_dec23_decompress(struct pwc_device *pdev,
const void *src,
void *dst);
#endif

8
drivers/media/video/pwc/pwc-if.c
View File

@ -603,14 +603,6 @@ static void pwc_video_release(struct v4l2_device *v)
if (device_hint[hint].pdev == pdev)
device_hint[hint].pdev = NULL;
/* Free intermediate decompression buffer & tables */
if (pdev->decompress_data != NULL) {
PWC_DEBUG_MEMORY("Freeing decompression buffer at %p.\n",
pdev->decompress_data);
kfree(pdev->decompress_data);
pdev->decompress_data = NULL;
}
v4l2_ctrl_handler_free(&pdev->ctrl_handler);
kfree(pdev);

7
drivers/media/video/pwc/pwc.h
View File

@ -44,6 +44,8 @@
#ifdef CONFIG_USB_PWC_INPUT_EVDEV
#include <linux/input.h>
#endif
#include "pwc-dec1.h"
#include "pwc-dec23.h"
/* Version block */
#define PWC_VERSION "10.0.15"
@ -272,7 +274,10 @@ struct pwc_device
int frame_total_size; /* including header & trailer */
int drop_frames;
void *decompress_data; /* private data for decompression engine */
union { /* private data for decompression engine */
struct pwc_dec1_private dec1;
struct pwc_dec23_private dec23;
};
/*
* We have an 'image' and a 'view', where 'image' is the fixed-size img