| 1 | #include <stdio.h> |
| 2 | #include <stdlib.h> |
| 3 | #include <string.h> |
| 4 | |
| 5 | #include "../include/chroma.h" |
| 6 | |
| 7 | void chroma_transition_init_output(chroma_output_t *output, int duration_ms) { |
| 8 | if (!output) { |
| 9 | return; |
| 10 | } |
| 11 | |
| 12 | if (duration_ms <= 0) { |
| 13 | chroma_log("DEBUG", "Transition skipped for output %u: duration_ms=%d", |
| 14 | output->id, duration_ms); |
| 15 | return; |
| 16 | } |
| 17 | |
| 18 | output->transition_duration_ms = duration_ms; |
| 19 | output->transition_start_ms = chroma_get_time_ms(); |
| 20 | output->in_transition = true; |
| 21 | |
| 22 | chroma_log("DEBUG", "Transition started for output %u: %dms", output->id, |
| 23 | duration_ms); |
| 24 | } |
| 25 | |
| 26 | void chroma_transition_cleanup_output(chroma_output_t *output) { |
| 27 | if (!output) { |
| 28 | return; |
| 29 | } |
| 30 | |
| 31 | if (output->transition_prev) { |
| 32 | free(output->transition_prev); |
| 33 | output->transition_prev = NULL; |
| 34 | output->transition_prev_size = 0; |
| 35 | } |
| 36 | |
| 37 | output->in_transition = false; |
| 38 | output->transition_start_ms = 0; |
| 39 | } |
| 40 | |
| 41 | bool chroma_transition_is_active(chroma_output_t *output) { |
| 42 | if (!output || !output->in_transition) { |
| 43 | return false; |
| 44 | } |
| 45 | |
| 46 | long long now = chroma_get_time_ms(); |
| 47 | long long elapsed = now - output->transition_start_ms; |
| 48 | |
| 49 | if (elapsed >= output->transition_duration_ms) { |
| 50 | chroma_transition_cleanup_output(output); |
| 51 | return false; |
| 52 | } |
| 53 | |
| 54 | return true; |
| 55 | } |
| 56 | |
| 57 | float chroma_transition_get_alpha(chroma_output_t *output, |
| 58 | long long current_time_ms) { |
| 59 | if (!output || !output->in_transition) { |
| 60 | return 1.0f; |
| 61 | } |
| 62 | |
| 63 | long long elapsed = current_time_ms - output->transition_start_ms; |
| 64 | if (elapsed <= 0) |
| 65 | return 0.0f; |
| 66 | if (elapsed >= output->transition_duration_ms) |
| 67 | return 1.0f; |
| 68 | |
| 69 | float alpha = (float)elapsed / (float)output->transition_duration_ms; |
| 70 | return alpha; |
| 71 | } |
| 72 | |
| 73 | bool chroma_transition_needs_redraw(chroma_state_t *state) { |
| 74 | if (!state) { |
| 75 | return false; |
| 76 | } |
| 77 | |
| 78 | for (int i = 0; i < state->output_count; i++) { |
| 79 | if (chroma_transition_is_active(&state->outputs[i])) { |
| 80 | return true; |
| 81 | } |
| 82 | } |
| 83 | |
| 84 | return false; |
| 85 | } |
| 86 | |
| 87 | int chroma_transition_update_outputs(chroma_state_t *state) { |
| 88 | if (!state) { |
| 89 | return CHROMA_ERROR_INIT; |
| 90 | } |
| 91 | |
| 92 | int updated = 0; |
| 93 | for (int i = 0; i < state->output_count; i++) { |
| 94 | chroma_output_t *output = &state->outputs[i]; |
| 95 | if (chroma_transition_is_active(output)) { |
| 96 | int ret = chroma_render_wallpaper(state, output); |
| 97 | if (ret == CHROMA_OK) { |
| 98 | updated++; |
| 99 | } |
| 100 | } |
| 101 | } |
| 102 | |
| 103 | if (updated > 0) { |
| 104 | chroma_log("DEBUG", "Transition frames rendered: %d outputs", updated); |
| 105 | } |
| 106 | |
| 107 | return CHROMA_OK; |
| 108 | } |