diff options
Diffstat (limited to 'drivers/media/video/mem2mem_testdev.c')
| -rw-r--r-- | drivers/media/video/mem2mem_testdev.c | 135 |
1 files changed, 124 insertions, 11 deletions
diff --git a/drivers/media/video/mem2mem_testdev.c b/drivers/media/video/mem2mem_testdev.c index 3945556..f08cf38 100644 --- a/drivers/media/video/mem2mem_testdev.c +++ b/drivers/media/video/mem2mem_testdev.c @@ -60,6 +60,10 @@ MODULE_VERSION("0.1.1"); #define MEM2MEM_COLOR_STEP (0xff >> 4) #define MEM2MEM_NUM_TILES 8 +/* Flags that indicate processing mode */ +#define MEM2MEM_HFLIP (1 << 0) +#define MEM2MEM_VFLIP (1 << 1) + #define dprintk(dev, fmt, arg...) \ v4l2_dbg(1, 1, &dev->v4l2_dev, "%s: " fmt, __func__, ## arg) @@ -115,6 +119,24 @@ enum { static struct v4l2_queryctrl m2mtest_ctrls[] = { { + .id = V4L2_CID_HFLIP, + .type = V4L2_CTRL_TYPE_BOOLEAN, + .name = "Mirror", + .minimum = 0, + .maximum = 1, + .step = 1, + .default_value = 0, + .flags = 0, + }, { + .id = V4L2_CID_VFLIP, + .type = V4L2_CTRL_TYPE_BOOLEAN, + .name = "Vertical Mirror", + .minimum = 0, + .maximum = 1, + .step = 1, + .default_value = 0, + .flags = 0, + }, { .id = V4L2_CID_TRANS_TIME_MSEC, .type = V4L2_CTRL_TYPE_INTEGER, .name = "Transaction time (msec)", @@ -181,6 +203,9 @@ struct m2mtest_ctx { /* Abort requested by m2m */ int aborting; + /* Processing mode */ + int mode; + struct v4l2_m2m_ctx *m2m_ctx; /* Source and destination queue data */ @@ -249,19 +274,84 @@ static int device_process(struct m2mtest_ctx *ctx, bytes_left = bytesperline - tile_w * MEM2MEM_NUM_TILES; w = 0; - for (y = 0; y < height; ++y) { - for (t = 0; t < MEM2MEM_NUM_TILES; ++t) { - if (w & 0x1) { - for (x = 0; x < tile_w; ++x) - *p_out++ = *p_in++ + MEM2MEM_COLOR_STEP; - } else { - for (x = 0; x < tile_w; ++x) - *p_out++ = *p_in++ - MEM2MEM_COLOR_STEP; + switch (ctx->mode) { + case MEM2MEM_HFLIP | MEM2MEM_VFLIP: + p_out += bytesperline * height - bytes_left; + for (y = 0; y < height; ++y) { + for (t = 0; t < MEM2MEM_NUM_TILES; ++t) { + if (w & 0x1) { + for (x = 0; x < tile_w; ++x) + *--p_out = *p_in++ + + MEM2MEM_COLOR_STEP; + } else { + for (x = 0; x < tile_w; ++x) + *--p_out = *p_in++ - + MEM2MEM_COLOR_STEP; + } + ++w; } - ++w; + p_in += bytes_left; + p_out -= bytes_left; + } + break; + + case MEM2MEM_HFLIP: + for (y = 0; y < height; ++y) { + p_out += MEM2MEM_NUM_TILES * tile_w; + for (t = 0; t < MEM2MEM_NUM_TILES; ++t) { + if (w & 0x01) { + for (x = 0; x < tile_w; ++x) + *--p_out = *p_in++ + + MEM2MEM_COLOR_STEP; + } else { + for (x = 0; x < tile_w; ++x) + *--p_out = *p_in++ - + MEM2MEM_COLOR_STEP; + } + ++w; + } + p_in += bytes_left; + p_out += bytesperline; + } + break; + + case MEM2MEM_VFLIP: + p_out += bytesperline * (height - 1); + for (y = 0; y < height; ++y) { + for (t = 0; t < MEM2MEM_NUM_TILES; ++t) { + if (w & 0x1) { + for (x = 0; x < tile_w; ++x) + *p_out++ = *p_in++ + + MEM2MEM_COLOR_STEP; + } else { + for (x = 0; x < tile_w; ++x) + *p_out++ = *p_in++ - + MEM2MEM_COLOR_STEP; + } + ++w; + } + p_in += bytes_left; + p_out += bytes_left - 2 * bytesperline; + } + break; + + default: + for (y = 0; y < height; ++y) { + for (t = 0; t < MEM2MEM_NUM_TILES; ++t) { + if (w & 0x1) { + for (x = 0; x < tile_w; ++x) + *p_out++ = *p_in++ + + MEM2MEM_COLOR_STEP; + } else { + for (x = 0; x < tile_w; ++x) + *p_out++ = *p_in++ - + MEM2MEM_COLOR_STEP; + } + ++w; + } + p_in += bytes_left; + p_out += bytes_left; } - p_in += bytes_left; - p_out += bytes_left; } return 0; @@ -648,6 +738,14 @@ static int vidioc_g_ctrl(struct file *file, void *priv, struct m2mtest_ctx *ctx = priv; switch (ctrl->id) { + case V4L2_CID_HFLIP: + ctrl->value = (ctx->mode & MEM2MEM_HFLIP) ? 1 : 0; + break; + + case V4L2_CID_VFLIP: + ctrl->value = (ctx->mode & MEM2MEM_VFLIP) ? 1 : 0; + break; + case V4L2_CID_TRANS_TIME_MSEC: ctrl->value = ctx->transtime; break; @@ -691,6 +789,20 @@ static int vidioc_s_ctrl(struct file *file, void *priv, return ret; switch (ctrl->id) { + case V4L2_CID_HFLIP: + if (ctrl->value) + ctx->mode |= MEM2MEM_HFLIP; + else + ctx->mode &= ~MEM2MEM_HFLIP; + break; + + case V4L2_CID_VFLIP: + if (ctrl->value) + ctx->mode |= MEM2MEM_VFLIP; + else + ctx->mode &= ~MEM2MEM_VFLIP; + break; + case V4L2_CID_TRANS_TIME_MSEC: ctx->transtime = ctrl->value; break; @@ -861,6 +973,7 @@ static int m2mtest_open(struct file *file) ctx->translen = MEM2MEM_DEF_TRANSLEN; ctx->transtime = MEM2MEM_DEF_TRANSTIME; ctx->num_processed = 0; + ctx->mode = 0; ctx->q_data[V4L2_M2M_SRC].fmt = &formats[0]; ctx->q_data[V4L2_M2M_DST].fmt = &formats[0]; |
