diff options
Diffstat (limited to 'drivers/gpu/ipu-v3')
| -rw-r--r-- | drivers/gpu/ipu-v3/ipu-image-convert.c | 30 |
1 files changed, 24 insertions, 6 deletions
diff --git a/drivers/gpu/ipu-v3/ipu-image-convert.c b/drivers/gpu/ipu-v3/ipu-image-convert.c index 40d450886e1d..a279d803ed91 100644 --- a/drivers/gpu/ipu-v3/ipu-image-convert.c +++ b/drivers/gpu/ipu-v3/ipu-image-convert.c @@ -487,6 +487,8 @@ static void find_best_seam(struct ipu_image_convert_ctx *ctx, unsigned int min_diff = UINT_MAX; unsigned int out_start; unsigned int out_end; + unsigned int in_start; + unsigned int in_end; /* Start within 1024 pixels of the right / bottom edge */ out_start = max_t(int, index * out_align, out_edge - 1024); @@ -494,6 +496,15 @@ static void find_best_seam(struct ipu_image_convert_ctx *ctx, out_end = min_t(unsigned int, out_edge, index * 1024 + 1); /* + * Limit input seam position to make sure that the downsized input tile + * to the right or bottom does not exceed 1024 pixels. + */ + in_start = max_t(int, index * in_align, + in_edge - (1024 << downsize_coeff)); + in_end = min_t(unsigned int, in_edge, + index * (1024 << downsize_coeff) + 1); + + /* * Output tiles must start at a multiple of 8 bytes horizontally and * possibly at an even line horizontally depending on the pixel format. * Only consider output aligned positions for the seam. @@ -502,6 +513,7 @@ static void find_best_seam(struct ipu_image_convert_ctx *ctx, for (out_pos = out_start; out_pos < out_end; out_pos += out_align) { unsigned int in_pos; unsigned int in_pos_aligned; + unsigned int in_pos_rounded; unsigned int abs_diff; /* @@ -522,9 +534,16 @@ static void find_best_seam(struct ipu_image_convert_ctx *ctx, * start the input tile at, 19.13 fixed point. */ in_pos_aligned = round_closest(in_pos, 8192U * in_align); + /* Convert 19.13 fixed point to integer */ + in_pos_rounded = in_pos_aligned / 8192U; + + if (in_pos_rounded < in_start) + continue; + if (in_pos_rounded >= in_end) + break; if ((in_burst > 1) && - (in_edge - in_pos_aligned / 8192U) % in_burst) + (in_edge - in_pos_rounded) % in_burst) continue; if (in_pos < in_pos_aligned) @@ -533,19 +552,18 @@ static void find_best_seam(struct ipu_image_convert_ctx *ctx, abs_diff = in_pos - in_pos_aligned; if (abs_diff < min_diff) { - in_seam = in_pos_aligned; + in_seam = in_pos_rounded; out_seam = out_pos; min_diff = abs_diff; } } *_out_seam = out_seam; - /* Convert 19.13 fixed point to integer seam position */ - *_in_seam = DIV_ROUND_CLOSEST(in_seam, 8192U); + *_in_seam = in_seam; - dev_dbg(dev, "%s: out_seam %u(%u) in [%u, %u], in_seam %u(%u) diff %u.%03u\n", + dev_dbg(dev, "%s: out_seam %u(%u) in [%u, %u], in_seam %u(%u) in [%u, %u] diff %u.%03u\n", __func__, out_seam, out_align, out_start, out_end, - *_in_seam, in_align, min_diff / 8192, + in_seam, in_align, in_start, in_end, min_diff / 8192, DIV_ROUND_CLOSEST(min_diff % 8192 * 1000, 8192)); } |