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Restored parallelism, but it will be done in another way... OpenMP is not very efficient in these kind of dynamic situation

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Laurent Fasnacht 2014-05-07 11:33:19 +02:00
parent 0e6f1c99fc
commit b48a687d3c
1 changed files with 26 additions and 2 deletions
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28
src/encoder.c
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@ -1154,8 +1154,32 @@ static void encoder_state_encode_tile(encoder_state * const encoder_state) {
static void encoder_state_encode(encoder_state * const main_state) {
//If we have children, encode at child level
if (main_state->children[0].encoder_control) {
int i=0;
for (i=0; main_state->children[i].encoder_control; ++i) {
int i=0, max_i=0;
//OpenMP doesn't like aving a stop condition like main_state->children[i].encoder_control.
//We compute max_i to avoid this.
for (i=0; main_state->children[i].encoder_control; ++i);
max_i = i;
if (max_i > 1) {
#pragma omp parallel for
for (i=0; i < max_i; ++i) {
encoder_state *sub_state = &(main_state->children[i]);
if (sub_state->tile != main_state->tile) {
encoder_state_blit_pixels(sub_state, sub_state->tile->cur_pic->y_data, main_state, main_state->tile->cur_pic->y_data, 1);
encoder_state_blit_pixels(sub_state, sub_state->tile->cur_pic->u_data, main_state, main_state->tile->cur_pic->u_data, 0);
encoder_state_blit_pixels(sub_state, sub_state->tile->cur_pic->v_data, main_state, main_state->tile->cur_pic->v_data, 0);
}
encoder_state_encode(&main_state->children[i]);
//FIXME: substream_write_bitstream(subencoder, (main_state->children[i+1].encoder_control) != NULL);
if (sub_state->tile != main_state->tile) {
encoder_state_blit_pixels(main_state, main_state->tile->cur_pic->y_recdata, sub_state, sub_state->tile->cur_pic->y_recdata, 1);
encoder_state_blit_pixels(main_state, main_state->tile->cur_pic->u_recdata, sub_state, sub_state->tile->cur_pic->u_recdata, 0);
encoder_state_blit_pixels(main_state, main_state->tile->cur_pic->v_recdata, sub_state, sub_state->tile->cur_pic->v_recdata, 0);
}
}
} else {
i=0;
encoder_state *sub_state = &(main_state->children[i]);
if (sub_state->tile != main_state->tile) {