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Change inter SAD functions to take const pointers.

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This commit is contained in:
Ari Koivula 2013-10-18 17:51:16 +03:00
parent c7ca3a6b44
commit 4576736575
2 changed files with 9 additions and 9 deletions
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16
src/picture.c
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@ -544,7 +544,7 @@ unsigned sad_nxn_16bit(int16_t *block1, int16_t *block2, unsigned n)
*
* \returns Sum of Absolute Differences
*/
unsigned cor_sad(pixel *pic_data, pixel *ref_data,
unsigned cor_sad(const pixel *pic_data, const pixel *ref_data,
int block_width, int block_height, unsigned width)
{
pixel ref = *ref_data;
@ -571,7 +571,7 @@ unsigned cor_sad(pixel *pic_data, pixel *ref_data,
*
* \returns Sum of Absolute Differences
*/
unsigned ver_sad(pixel *pic_data, pixel *ref_data,
unsigned ver_sad(const pixel *pic_data, const pixel *ref_data,
int block_width, int block_height, unsigned width)
{
int x, y;
@ -597,7 +597,7 @@ unsigned ver_sad(pixel *pic_data, pixel *ref_data,
*
* \returns Sum of Absolute Differences
*/
unsigned hor_sad(pixel *pic_data, pixel *ref_data,
unsigned hor_sad(const pixel *pic_data, const pixel *ref_data,
int block_width, int block_height, unsigned width)
{
int x, y;
@ -626,7 +626,7 @@ unsigned hor_sad(pixel *pic_data, pixel *ref_data,
*
* \returns Sum of Absolute Differences
*/
unsigned reg_sad(pixel *data1, pixel *data2,
unsigned reg_sad(const pixel *data1, const pixel *data2,
int width, int height, unsigned stride)
{
int y, x;
@ -654,7 +654,7 @@ unsigned reg_sad(pixel *data1, pixel *data2,
* \param block_width Width of the blocks.
* \param block_height Height of the blocks.
*/
unsigned interpolated_sad(picture *pic, picture *ref,
unsigned interpolated_sad(const picture *pic, const picture *ref,
int pic_x, int pic_y, int ref_x, int ref_y,
int block_width, int block_height)
{
@ -787,7 +787,7 @@ unsigned interpolated_sad(picture *pic, picture *ref,
* \param block_width Width of the blocks.
* \param block_height Height of the blocks.
*/
unsigned calc_sad(picture *pic, picture *ref,
unsigned calc_sad(const picture *pic, const picture *ref,
int pic_x, int pic_y, int ref_x, int ref_y,
int block_width, int block_height)
{
@ -796,8 +796,8 @@ unsigned calc_sad(picture *pic, picture *ref,
{
// Reference block is completely inside the frame, so just calculate the
// SAD directly. This is the most common case, which is why it's first.
pixel *pic_data = &pic->y_data[pic_y * pic->width + pic_x];
pixel *ref_data = &ref->y_data[ref_y * pic->width + ref_x];
const pixel *pic_data = &pic->y_data[pic_y * pic->width + pic_x];
const pixel *ref_data = &ref->y_data[ref_y * pic->width + ref_x];
return reg_sad(pic_data, ref_data, block_width, block_height, pic->width);
} else {
// Call a routine that knows how to interpolate pixels outside the frame.

2
src/picture.h
View file

@ -121,7 +121,7 @@ cost_16bit_nxn_func get_sad_16bit_nxn_func(unsigned n);
unsigned satd_16bit_nxn(int16_t *block1, int16_t *block2, unsigned n);
unsigned sad_16bit_nxn(int16_t *block1, int16_t *block2, unsigned n);
unsigned calc_sad(picture *pic, picture *ref,
unsigned calc_sad(const picture *pic, const picture *ref,
int pic_x, int pic_y, int ref_x, int ref_y,
int block_width, int block_height);