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Replace old LCU reference pixels initialization with new ones.

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In the future we might even have just a const pointer to reference pixels.
This commit is contained in:
Ari Koivula 2014-03-18 15:36:48 +02:00
parent 7328fc2897
commit bbd1202f90
1 changed files with 16 additions and 53 deletions
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69
src/search.c
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@ -883,7 +883,7 @@ static int search_cu(encoder_control *encoder, int x, int y, int depth, lcu_t wo
* - Copy reference pixels from neighbouring LCUs.
* - Copy reference pixels from this LCU.
*/
static void init_lcu_t(encoder_control *encoder, const int x, const int y, lcu_t *lcu, yuv_t *hor_buf, yuv_t *ver_buf)
static void init_lcu_t(encoder_control *encoder, const int x, const int y, lcu_t *lcu, const yuv_t *hor_buf, const yuv_t *ver_buf)
{
// Copy reference cu_info structs from neighbouring LCUs.
{
@ -931,70 +931,33 @@ static void init_lcu_t(encoder_control *encoder, const int x, const int y, lcu_t
// Copy reference pixels.
{
const picture *pic = encoder->in.cur_pic;
const int pic_width = encoder->in.width;
const int pic_height = encoder->in.height;
const int ref_size = LCU_REF_PX_WIDTH;
const int pic_width_c = encoder->in.width / 2;
const int pic_height_c = encoder->in.height / 2;
const int ref_size_c = LCU_REF_PX_WIDTH / 2;
const int x_c = x / 2;
const int y_c = y / 2;
// Copy top reference pixels.
if (y > 0) {
int x_max = MIN(ref_size, pic_width - x);
int x_max_c = x_max / 2;
picture_blit_pixels(&pic->y_recdata[x + (y - 1) * pic_width],
&lcu->top_ref.y[1],
x_max, 1, pic_width, ref_size);
picture_blit_pixels(&pic->u_recdata[x_c + (y_c - 1) * pic_width_c],
&lcu->top_ref.u[1],
x_max_c, 1, pic_width_c, ref_size_c);
picture_blit_pixels(&pic->v_recdata[x_c + (y_c - 1) * pic_width_c],
&lcu->top_ref.v[1],
x_max_c, 1, pic_width_c, ref_size_c);
assert(!memcmp(&hor_buf->y[x], &lcu->top_ref.y[1], x_max));
assert(!memcmp(&hor_buf->u[x / 2], &lcu->top_ref.u[1], x_max_c));
assert(!memcmp(&hor_buf->v[x / 2], &lcu->top_ref.v[1], x_max_c));
// hor_buf is of size pic_width so there might not be LCU_REF_PX_WIDTH
// number of allocated pixels left.
int x_max = MIN(LCU_REF_PX_WIDTH, pic_width - x);
memcpy(&lcu->top_ref.y[1], &hor_buf->y[x], x_max);
memcpy(&lcu->top_ref.u[1], &hor_buf->u[x / 2], x_max / 2);
memcpy(&lcu->top_ref.v[1], &hor_buf->v[x / 2], x_max / 2);
}
// Copy left reference pixels.
if (x > 0) {
int y_max = MIN(LCU_WIDTH, pic_height - y);
int y_max_c = y_max / 2;
picture_blit_pixels(&pic->y_recdata[(x - 1) + y * pic_width],
&lcu->left_ref.y[1],
1, y_max, pic_width, 1);
picture_blit_pixels(&pic->u_recdata[(x_c - 1) + (y_c) * pic_width_c],
&lcu->left_ref.u[1],
1, y_max_c, pic_width_c, 1);
picture_blit_pixels(&pic->v_recdata[(x_c - 1) + (y_c) * pic_width_c],
&lcu->left_ref.v[1],
1, y_max_c, pic_width_c, 1);
assert(!memcmp(&ver_buf->y[1], &lcu->left_ref.y[1], y_max));
assert(!memcmp(&ver_buf->u[1], &lcu->left_ref.u[1], y_max_c));
assert(!memcmp(&ver_buf->v[1], &lcu->left_ref.v[1], y_max_c));
memcpy(&lcu->left_ref.y[1], &ver_buf->y[1], LCU_WIDTH);
memcpy(&lcu->left_ref.u[1], &ver_buf->u[1], LCU_WIDTH);
memcpy(&lcu->left_ref.v[1], &ver_buf->v[1], LCU_WIDTH);
}
// Copy top-left reference pixel.
if (x > 0 && y > 0) {
lcu->top_ref.y[0] = pic->y_recdata[(x - 1) + (y - 1) * pic_width];
lcu->left_ref.y[0] = pic->y_recdata[(x - 1) + (y - 1) * pic_width];
lcu->top_ref.y[0] = ver_buf->y[0];
lcu->left_ref.y[0] = ver_buf->y[0];
lcu->top_ref.u[0] = pic->u_recdata[(x_c - 1) + (y_c - 1) * pic_width_c];
lcu->left_ref.u[0] = pic->u_recdata[(x_c - 1) + (y_c - 1) * pic_width_c];
lcu->top_ref.u[0] = ver_buf->u[0];
lcu->left_ref.u[0] = ver_buf->u[0];
lcu->top_ref.v[0] = pic->v_recdata[(x_c - 1) + (y_c - 1) * pic_width_c];
lcu->left_ref.v[0] = pic->v_recdata[(x_c - 1) + (y_c - 1) * pic_width_c];
assert(ver_buf->y[0] == lcu->top_ref.y[0]);
assert(ver_buf->u[0] == lcu->top_ref.u[0]);
assert(ver_buf->v[0] == lcu->top_ref.v[0]);
lcu->top_ref.v[0] = ver_buf->v[0];
lcu->left_ref.v[0] = ver_buf->v[0];
}
}