The open source OpenXR runtime
st/gui: Improve record window scaling and add 180 degree flipping
authored by
Moses Turner
and committed by
Jakob Bornecrantz
9a9878a8
d5dd9a26
+19
-24
+17
-23
src/xrt/state_trackers/gui/gui_window_record.c
+17
-23
src/xrt/state_trackers/gui/gui_window_record.c
···
196
196
static void
197
197
window_draw_misc(struct gui_record_window *rw)
198
198
{
199
-
if (!igCollapsingHeaderBoolPtr("Misc", NULL, ImGuiTreeNodeFlags_None)) {
200
-
return;
201
-
}
199
+
igSliderFloat("", &rw->texture.scale, 20.0, 300.f, "Scale %f%%", ImGuiSliderFlags_None);
202
200
203
-
static ImVec2 button_dims = {0, 0};
204
-
bool plus = igButton("+", button_dims);
205
-
igSameLine(0.0f, 4.0f);
206
-
bool minus = igButton("-", button_dims);
207
-
igSameLine(0.0f, 4.0f);
201
+
igSameLine(0, 30);
208
202
209
-
if (rw->texture.scale == 1) {
210
-
igText("Scale 100%%");
211
-
} else {
212
-
igText("Scale 1/%i", rw->texture.scale);
213
-
}
203
+
igCheckbox("Rotate 180 degrees", &rw->texture.rotate_180);
214
204
215
-
if (plus && rw->texture.scale > 1) {
216
-
rw->texture.scale--;
217
-
}
218
-
if (minus && rw->texture.scale < 6) {
219
-
rw->texture.scale++;
220
-
}
205
+
igSameLine(0, 30);
221
206
222
207
igText("Sequence %u", (uint32_t)rw->texture.ogl->seq);
223
208
}
···
278
263
279
264
280
265
// Setup the preview texture.
281
-
rw->texture.scale = 2;
266
+
// 50% scale.
267
+
rw->texture.scale = 50.0;
282
268
struct xrt_frame_sink *tmp = NULL;
283
269
rw->texture.ogl = gui_ogl_sink_create("View", &rw->texture.xfctx, &tmp);
284
270
u_sink_create_to_r8g8b8_r8g8b8a8_r8g8b8x8_or_l8(&rw->texture.xfctx, tmp, &tmp);
···
295
281
296
282
gui_ogl_sink_update(rw->texture.ogl);
297
283
284
+
window_draw_misc(rw);
285
+
298
286
struct gui_ogl_texture *tex = rw->texture.ogl;
299
287
300
-
int w = tex->w / rw->texture.scale;
301
-
int h = tex->h / rw->texture.scale;
288
+
int w = tex->w * rw->texture.scale / 100.0f;
289
+
int h = tex->h * rw->texture.scale / 100.0f;
302
290
303
291
ImVec2 size = {(float)w, (float)h};
304
292
ImVec2 uv0 = {0, 0};
305
293
ImVec2 uv1 = {1, 1};
294
+
295
+
// Note: We can't easily do 90 or 270-degree rotations: https://github.com/ocornut/imgui/issues/3267
296
+
if (rw->texture.rotate_180) {
297
+
uv0 = (ImVec2){1, 1};
298
+
uv1 = (ImVec2){0, 0};
299
+
}
300
+
306
301
ImVec4 white = {1, 1, 1, 1};
307
302
ImTextureID id = (ImTextureID)(intptr_t)tex->id;
308
303
igImage(id, size, uv0, uv1, white, white);
···
311
306
draw_gst(rw);
312
307
#endif
313
308
314
-
window_draw_misc(rw);
315
309
316
310
// Pop the ID making everything unique.
317
311
igPopID();