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02196bb047a78a943f97855985b4affb2f5a07ee
armorpaint/paint/sources/tab_timeline.c
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luboslenco 647837b1ee paint: add timeline tab
2026-06-01 13:59:28 +02:00

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#include "global.h"
typedef struct {
i32 frame;
i32 layer_index;
gpu_texture_t *texpaint;
gpu_texture_t *texpaint_nor;
gpu_texture_t *texpaint_pack;
} tab_timeline_keyframe_t;
typedef struct {
i32 layer_index;
gpu_texture_t *texpaint;
gpu_texture_t *texpaint_nor;
gpu_texture_t *texpaint_pack;
} tab_timeline_origin_t;
i32 tab_timeline_selected_frame = 0;
i32 tab_timeline_selected_row = 0;
bool tab_timeline_playing = false;
f64 tab_timeline_play_time = 0.0;
i32 tab_timeline_scroll = 0;
bool tab_timeline_scrolling = false;
f32 tab_timeline_scroll_drag_x = 0.0f;
i32 tab_timeline_scroll_drag_v = 0;
static i32 tab_timeline_max_frames = 200;
static i32 tab_timeline_fps = 24;
static any_array_t *tab_timeline_keyframes = NULL;
static any_array_t *tab_timeline_origins = NULL;
static i32 tab_timeline_last_frame = 0;
static i32 tab_timeline_pending_from = -1;
static i32 tab_timeline_pending_to = -1;
static i32 tab_timeline_pending_kf_frame = -1;
static i32 tab_timeline_pending_kf_layer = -1;
static i32 tab_timeline_pending_rm_frame = -1;
static i32 tab_timeline_pending_rm_layer = -1;
static void tab_timeline_copy_tex(gpu_texture_t *dst, gpu_texture_t *src) {
draw_begin(dst, true, 0x00000000);
draw_set_pipeline(pipes_copy);
draw_scaled_image(src, 0, 0, dst->width, dst->height);
draw_set_pipeline(NULL);
draw_end();
}
static gpu_texture_format_t tab_timeline_tex_format() {
return base_bits_handle->i == TEXTURE_BITS_BITS8 ? GPU_TEXTURE_FORMAT_RGBA32
: base_bits_handle->i == TEXTURE_BITS_BITS16 ? GPU_TEXTURE_FORMAT_RGBA64
: GPU_TEXTURE_FORMAT_RGBA128;
}
static i32 tab_timeline_find_keyframe(i32 frame, i32 layer_index) {
for (i32 i = 0; i < tab_timeline_keyframes->length; i++) {
tab_timeline_keyframe_t *kf = tab_timeline_keyframes->buffer[i];
if (kf->frame == frame && kf->layer_index == layer_index) {
return i;
}
}
return -1;
}
static i32 tab_timeline_find_active_keyframe(i32 frame, i32 layer_index) {
i32 best = -1;
i32 best_frame = -1;
for (i32 i = 0; i < tab_timeline_keyframes->length; i++) {
tab_timeline_keyframe_t *kf = tab_timeline_keyframes->buffer[i];
if (kf->layer_index == layer_index && kf->frame <= frame && kf->frame > best_frame) {
best_frame = kf->frame;
best = i;
}
}
return best;
}
static i32 tab_timeline_find_origin(i32 layer_index) {
for (i32 i = 0; i < tab_timeline_origins->length; i++) {
if (((tab_timeline_origin_t *)tab_timeline_origins->buffer[i])->layer_index == layer_index) {
return i;
}
}
return -1;
}
static void tab_timeline_save_origins() {
gpu_texture_format_t fmt = tab_timeline_tex_format();
i32 w = config_get_texture_res_x();
i32 h = config_get_texture_res_y();
for (i32 li = 0; li < project_layers->length; li++) {
slot_layer_t *l = project_layers->buffer[li];
if (!slot_layer_is_layer(l)) {
continue;
}
i32 oi = tab_timeline_find_origin(li);
tab_timeline_origin_t *o;
if (oi < 0) {
o = GC_ALLOC_INIT(tab_timeline_origin_t, {0});
o->layer_index = li;
o->texpaint = gpu_create_render_target(w, h, fmt);
o->texpaint_nor = gpu_create_render_target(w, h, fmt);
o->texpaint_pack = gpu_create_render_target(w, h, fmt);
any_array_push(tab_timeline_origins, o);
}
else {
o = tab_timeline_origins->buffer[oi];
}
tab_timeline_copy_tex(o->texpaint, l->texpaint);
tab_timeline_copy_tex(o->texpaint_nor, l->texpaint_nor);
tab_timeline_copy_tex(o->texpaint_pack, l->texpaint_pack);
}
}
static void tab_timeline_load_origins() {
for (i32 li = 0; li < project_layers->length; li++) {
i32 oi = tab_timeline_find_origin(li);
if (oi < 0) {
continue;
}
slot_layer_t *l = project_layers->buffer[li];
tab_timeline_origin_t *o = tab_timeline_origins->buffer[oi];
if (slot_layer_is_layer(l)) {
tab_timeline_copy_tex(l->texpaint, o->texpaint);
tab_timeline_copy_tex(l->texpaint_nor, o->texpaint_nor);
tab_timeline_copy_tex(l->texpaint_pack, o->texpaint_pack);
}
}
g_context->ddirty = 2;
g_context->layers_preview_dirty = true;
}
static void tab_timeline_save_to_keyframes(i32 frame) {
for (i32 li = 0; li < project_layers->length; li++) {
i32 kfi = tab_timeline_find_keyframe(frame, li);
if (kfi < 0) {
continue;
}
slot_layer_t *l = project_layers->buffer[li];
tab_timeline_keyframe_t *kf = tab_timeline_keyframes->buffer[kfi];
if (slot_layer_is_layer(l)) {
tab_timeline_copy_tex(kf->texpaint, l->texpaint);
tab_timeline_copy_tex(kf->texpaint_nor, l->texpaint_nor);
tab_timeline_copy_tex(kf->texpaint_pack, l->texpaint_pack);
}
}
}
static void tab_timeline_load_from_keyframes(i32 frame) {
bool any = false;
for (i32 li = 0; li < project_layers->length; li++) {
slot_layer_t *l = project_layers->buffer[li];
if (!slot_layer_is_layer(l)) {
continue;
}
i32 kfi = tab_timeline_find_active_keyframe(frame, li);
if (kfi >= 0) {
tab_timeline_keyframe_t *kf = tab_timeline_keyframes->buffer[kfi];
tab_timeline_copy_tex(l->texpaint, kf->texpaint);
tab_timeline_copy_tex(l->texpaint_nor, kf->texpaint_nor);
tab_timeline_copy_tex(l->texpaint_pack, kf->texpaint_pack);
any = true;
}
else {
i32 oi = tab_timeline_find_origin(li);
if (oi >= 0) {
tab_timeline_origin_t *o = tab_timeline_origins->buffer[oi];
tab_timeline_copy_tex(l->texpaint, o->texpaint);
tab_timeline_copy_tex(l->texpaint_nor, o->texpaint_nor);
tab_timeline_copy_tex(l->texpaint_pack, o->texpaint_pack);
any = true;
}
}
}
if (any) {
g_context->ddirty = 2;
g_context->layers_preview_dirty = true;
}
}
static void tab_timeline_frame_change_on_next_frame(void *_) {
i32 from = tab_timeline_pending_from;
i32 to = tab_timeline_pending_to;
tab_timeline_pending_from = -1;
tab_timeline_pending_to = -1;
from == 0 ? tab_timeline_save_origins() : tab_timeline_save_to_keyframes(from);
to == 0 ? tab_timeline_load_origins() : tab_timeline_load_from_keyframes(to);
}
static void tab_timeline_add_keyframe_on_next_frame(void *_) {
i32 fr = tab_timeline_pending_kf_frame;
i32 li = tab_timeline_pending_kf_layer;
tab_timeline_pending_kf_frame = -1;
tab_timeline_pending_kf_layer = -1;
if (fr <= 0 || li < 0 || li >= project_layers->length) {
return;
}
slot_layer_t *l = project_layers->buffer[li];
if (!slot_layer_is_layer(l)) {
return;
}
gpu_texture_format_t fmt = tab_timeline_tex_format();
i32 w = config_get_texture_res_x();
i32 h = config_get_texture_res_y();
i32 kfi = tab_timeline_find_keyframe(fr, li);
tab_timeline_keyframe_t *kf;
if (kfi < 0) {
kf = GC_ALLOC_INIT(tab_timeline_keyframe_t, {0});
kf->frame = fr;
kf->layer_index = li;
kf->texpaint = gpu_create_render_target(w, h, fmt);
kf->texpaint_nor = gpu_create_render_target(w, h, fmt);
kf->texpaint_pack = gpu_create_render_target(w, h, fmt);
any_array_push(tab_timeline_keyframes, kf);
}
else {
kf = tab_timeline_keyframes->buffer[kfi];
}
tab_timeline_copy_tex(kf->texpaint, l->texpaint);
tab_timeline_copy_tex(kf->texpaint_nor, l->texpaint_nor);
tab_timeline_copy_tex(kf->texpaint_pack, l->texpaint_pack);
}
static void tab_timeline_remove_keyframe_on_next_frame(void *_) {
i32 fr = tab_timeline_pending_rm_frame;
i32 li = tab_timeline_pending_rm_layer;
tab_timeline_pending_rm_frame = -1;
tab_timeline_pending_rm_layer = -1;
i32 kfi = tab_timeline_find_keyframe(fr, li);
if (kfi < 0) {
return;
}
array_remove(tab_timeline_keyframes, tab_timeline_keyframes->buffer[kfi]);
if (fr == tab_timeline_last_frame) {
tab_timeline_load_from_keyframes(fr);
}
}
static void tab_timeline_clear_on_next_frame(void *_) {
gc_unroot(tab_timeline_keyframes);
tab_timeline_keyframes = any_array_create_from_raw((void *[]){}, 0);
gc_root(tab_timeline_keyframes);
tab_timeline_load_origins();
tab_timeline_last_frame = 0;
}
static void tab_timeline_init() {
if (tab_timeline_keyframes != NULL) {
return;
}
tab_timeline_keyframes = any_array_create_from_raw((void *[]){}, 0);
gc_root(tab_timeline_keyframes);
tab_timeline_origins = any_array_create_from_raw((void *[]){}, 0);
gc_root(tab_timeline_origins);
}
void tab_timeline_draw_frame_context_menu() {
bool has_kf = tab_timeline_keyframes != NULL && tab_timeline_selected_frame > 0 &&
tab_timeline_find_keyframe(tab_timeline_selected_frame, tab_timeline_selected_row) >= 0;
ui->enabled = has_kf;
if (ui_menu_button(tr("Remove Keyframe"), "", ICON_MINUS)) {
tab_timeline_pending_rm_frame = tab_timeline_selected_frame;
tab_timeline_pending_rm_layer = tab_timeline_selected_row;
sys_notify_on_next_frame(&tab_timeline_remove_keyframe_on_next_frame, NULL);
}
ui->enabled = true;
}
void tab_timeline_draw_edit() {
ui_menu_align();
ui_handle_t *hfps = ui_handle(__ID__);
hfps->f = (f32)tab_timeline_fps;
ui_slider(hfps, tr("Framerate"), 1, 60, false, 1, true, UI_ALIGN_RIGHT, true);
if (hfps->changed) {
tab_timeline_fps = (i32)hfps->f;
ui_menu_keep_open = true;
}
ui_menu_align();
ui_handle_t *hframes = ui_handle(__ID__);
hframes->f = (f32)tab_timeline_max_frames;
ui_slider(hframes, tr("Frame Count"), 1, 200, false, 1, true, UI_ALIGN_RIGHT, true);
if (hframes->changed) {
tab_timeline_max_frames = (i32)hframes->f;
ui_menu_keep_open = true;
}
if (ui_menu_button(tr("Clear"), "", ICON_ERASE)) {
sys_notify_on_next_frame(&tab_timeline_clear_on_next_frame, NULL);
}
}
void tab_timeline_draw(ui_handle_t *htab) {
if (ui_tab(htab, tr("Timeline"), false, -1, false) && ui->_window_h > ui_statusbar_default_h * UI_SCALE()) {
tab_timeline_init();
ui_begin_sticky();
f32_array_t *row = f32_array_create_from_raw((f32[]){-100, -100, -40, -40, -40, -40, -60}, 7);
ui_row(row);
if (ui_icon_button(tr("Keyframe"), ICON_PLUS, UI_ALIGN_CENTER)) {
i32 li = tab_timeline_selected_row;
if (tab_timeline_selected_frame > 0 && li < project_layers->length && slot_layer_is_layer(project_layers->buffer[li])) {
tab_timeline_pending_kf_frame = tab_timeline_selected_frame;
tab_timeline_pending_kf_layer = li;
sys_notify_on_next_frame(&tab_timeline_add_keyframe_on_next_frame, NULL);
}
}
if (ui_icon_button(tr("Edit"), ICON_EDIT, UI_ALIGN_CENTER)) {
ui_menu_draw(&tab_timeline_draw_edit, -1, -1);
}
if (tab_timeline_playing) {
if (ui_icon_button(tr("Pause"), ICON_PAUSE, UI_ALIGN_CENTER)) {
tab_timeline_playing = false;
}
}
else {
if (ui_icon_button(tr("Play"), ICON_PLAY, UI_ALIGN_CENTER)) {
tab_timeline_playing = true;
tab_timeline_play_time = sys_time() - (f64)tab_timeline_selected_frame / tab_timeline_fps;
}
}
if (ui_icon_button(tr("Stop"), ICON_STOP, UI_ALIGN_CENTER)) {
tab_timeline_playing = false;
tab_timeline_selected_frame = 0;
}
if (ui_icon_button(tr("Previous"), ICON_CHEVRON_LEFT, UI_ALIGN_CENTER)) {
if (tab_timeline_selected_frame > 0) {
tab_timeline_selected_frame--;
tab_timeline_play_time = sys_time() - (f64)tab_timeline_selected_frame / tab_timeline_fps;
}
}
if (ui_icon_button(tr("Next"), ICON_CHEVRON_RIGHT, UI_ALIGN_CENTER)) {
if (tab_timeline_selected_frame < tab_timeline_max_frames - 1) {
tab_timeline_selected_frame++;
tab_timeline_play_time = sys_time() - (f64)tab_timeline_selected_frame / tab_timeline_fps;
}
}
ui->enabled = false;
ui_text(i32_to_string(tab_timeline_selected_frame), UI_ALIGN_CENTER, 0x00000000);
ui->enabled = true;
ui_end_sticky();
f32 layer_name_w = 100.0f * UI_SCALE();
f32 frame_w = 16.0f * UI_SCALE();
f32 start_x = ui->_x + layer_name_w;
f32 start_y = ui->_y;
i32 font_h = draw_font_height(ui->ops->font, ui->font_size);
i32 strip_h = (i32)(ui->ops->theme->ELEMENT_H * UI_SCALE());
f32 track_w = ui->_window_w - start_x;
i32 visible = (i32)(track_w / frame_w);
i32 max_scroll = math_max(tab_timeline_max_frames - visible, 0);
tab_timeline_scroll = (i32)math_min(math_max(tab_timeline_scroll, 0), max_scroll);
if (tab_timeline_playing) {
iron_delay_idle_sleep();
f64 elapsed = sys_time() - tab_timeline_play_time;
tab_timeline_selected_frame = (i32)(elapsed * tab_timeline_fps) % tab_timeline_max_frames;
ui_base_hwnds->buffer[TAB_AREA_STATUS]->redraws = 2;
}
// Frame number labels every 5 frames
draw_set_color(ui->ops->theme->LABEL_COL);
i32 label_start = (tab_timeline_scroll / 5) * 5;
for (i32 i = label_start; i < tab_timeline_scroll + visible + 1 && i < tab_timeline_max_frames; i += 5) {
f32 lx = start_x + (i - tab_timeline_scroll) * frame_w;
char *label = i32_to_string(i);
f32 label_w = draw_string_width(ui->ops->font, ui->font_size, label);
draw_string(label, lx + (frame_w - label_w) / 2.0f, start_y);
}
u32 base_col = ui->ops->theme->BUTTON_COL;
u32 bright_col = base_col + 0x00101010;
u32 sel_col = ui->ops->theme->HIGHLIGHT_COL;
i32 row_count = project_layers->length;
gpu_texture_t *icons = resource_get("icons.k");
f32 icon_size = strip_h - 2;
for (i32 ri = 0; ri < row_count; ri++) {
slot_layer_t *layer = project_layers->buffer[ri];
f32 row_y = start_y + font_h + 2 + ri * strip_h;
f32 icon_y = row_y + (strip_h - icon_size) / 2.0f;
rect_t *rect = resource_tile50(icons, ICON_LAYERS);
draw_set_color(ui->ops->theme->LABEL_COL);
draw_scaled_sub_image(icons, rect->x, rect->y, rect->w, rect->h, ui->_x, icon_y, icon_size, icon_size);
draw_set_color(ui->ops->theme->LABEL_COL);
draw_string(layer->name, ui->_x + icon_size + 2, row_y + (strip_h - font_h) / 2.0f);
for (i32 i = tab_timeline_scroll; i < tab_timeline_scroll + visible + 1 && i < tab_timeline_max_frames; i++) {
f32 x = start_x + (i - tab_timeline_scroll) * frame_w;
bool selected = i == tab_timeline_selected_frame && ri == tab_timeline_selected_row;
u32 col = selected ? sel_col : (i % 5 == 0) ? bright_col : base_col;
draw_set_color(col);
draw_filled_rect(x, row_y, frame_w - 1, strip_h - 1);
if (i == 0 || (tab_timeline_keyframes != NULL && tab_timeline_find_keyframe(i, ri) >= 0)) {
draw_set_color(ui->ops->theme->LABEL_COL);
draw_filled_circle(x + frame_w / 2.0f, row_y + strip_h / 2.0f, 3.0f * UI_SCALE(), 12);
}
bool in_cell = !tab_timeline_scrolling && ui->input_x > ui->_window_x + x && ui->input_x < ui->_window_x + x + frame_w &&
ui->input_y > ui->_window_y + row_y && ui->input_y < ui->_window_y + row_y + strip_h;
if (in_cell && ui->input_down) {
tab_timeline_selected_frame = i;
tab_timeline_selected_row = ri;
tab_timeline_play_time = sys_time() - (f64)i / tab_timeline_fps;
}
if (in_cell && ui->input_released_r) {
tab_timeline_selected_frame = i;
tab_timeline_selected_row = ri;
ui_menu_draw(&tab_timeline_draw_frame_context_menu, -1, -1);
}
}
}
// Scrollbar
f32 scrollbar_h = 8.0f * UI_SCALE();
f32 scrollbar_y = start_y + font_h + 2 + row_count * strip_h;
f32 handle_w = track_w * (f32)visible / tab_timeline_max_frames;
f32 handle_x = start_x + (max_scroll > 0 ? tab_timeline_scroll * (track_w - handle_w) / max_scroll : 0);
draw_set_color(base_darker(ui->ops->theme->BUTTON_COL, 0x00101010));
draw_filled_rect(start_x, scrollbar_y, track_w, scrollbar_h);
draw_set_color(ui->ops->theme->BUTTON_COL + 0x00202020);
draw_filled_rect(handle_x, scrollbar_y, handle_w, scrollbar_h);
if (ui->input_started && ui->input_x > ui->_window_x + start_x && ui->input_x < ui->_window_x + start_x + track_w &&
ui->input_y > ui->_window_y + scrollbar_y && ui->input_y < ui->_window_y + scrollbar_y + scrollbar_h) {
tab_timeline_scrolling = true;
tab_timeline_scroll_drag_x = ui->input_x;
tab_timeline_scroll_drag_v = tab_timeline_scroll;
}
if (ui->input_released) {
tab_timeline_scrolling = false;
}
if (tab_timeline_scrolling && ui->input_down && max_scroll > 0) {
f32 delta = ui->input_x - tab_timeline_scroll_drag_x;
tab_timeline_scroll = (i32)(tab_timeline_scroll_drag_v + delta * max_scroll / (track_w - handle_w));
tab_timeline_scroll = (i32)math_min(math_max(tab_timeline_scroll, 0), max_scroll);
}
// Select frame
if (tab_timeline_selected_frame != tab_timeline_last_frame) {
tab_timeline_pending_from = tab_timeline_last_frame;
tab_timeline_pending_to = tab_timeline_selected_frame;
tab_timeline_last_frame = tab_timeline_selected_frame;
sys_notify_on_next_frame(&tab_timeline_frame_change_on_next_frame, NULL);
}
draw_set_color(0xffffffff);
ui->_y = scrollbar_y + scrollbar_h + 2;
}
}
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