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st/gui: Improve record window scaling and add 180 degree flipping

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This commit is contained in:
Moses Turner 2022-09-22 00:53:27 -05:00 committed by Jakob Bornecrantz
parent d5dd9a264e
commit 9a9878a850
2 changed files with 19 additions and 24 deletions
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40
src/xrt/state_trackers/gui/gui_window_record.c
View file

@ -196,28 +196,13 @@ draw_gst(struct gui_record_window *rw)
static void
window_draw_misc(struct gui_record_window *rw)
{
if (!igCollapsingHeaderBoolPtr("Misc", NULL, ImGuiTreeNodeFlags_None)) {
return;
}
igSliderFloat("", &rw->texture.scale, 20.0, 300.f, "Scale %f%%", ImGuiSliderFlags_None);
static ImVec2 button_dims = {0, 0};
bool plus = igButton("+", button_dims);
igSameLine(0.0f, 4.0f);
bool minus = igButton("-", button_dims);
igSameLine(0.0f, 4.0f);
igSameLine(0, 30);
if (rw->texture.scale == 1) {
igText("Scale 100%%");
} else {
igText("Scale 1/%i", rw->texture.scale);
}
igCheckbox("Rotate 180 degrees", &rw->texture.rotate_180);
if (plus && rw->texture.scale > 1) {
rw->texture.scale--;
}
if (minus && rw->texture.scale < 6) {
rw->texture.scale++;
}
igSameLine(0, 30);
igText("Sequence %u", (uint32_t)rw->texture.ogl->seq);
}
@ -278,7 +263,8 @@ gui_window_record_init(struct gui_record_window *rw)
// Setup the preview texture.
rw->texture.scale = 2;
// 50% scale.
rw->texture.scale = 50.0;
struct xrt_frame_sink *tmp = NULL;
rw->texture.ogl = gui_ogl_sink_create("View", &rw->texture.xfctx, &tmp);
u_sink_create_to_r8g8b8_r8g8b8a8_r8g8b8x8_or_l8(&rw->texture.xfctx, tmp, &tmp);
@ -295,14 +281,23 @@ gui_window_record_render(struct gui_record_window *rw, struct gui_program *p)
gui_ogl_sink_update(rw->texture.ogl);
window_draw_misc(rw);
struct gui_ogl_texture *tex = rw->texture.ogl;
int w = tex->w / rw->texture.scale;
int h = tex->h / rw->texture.scale;
int w = tex->w * rw->texture.scale / 100.0f;
int h = tex->h * rw->texture.scale / 100.0f;
ImVec2 size = {(float)w, (float)h};
ImVec2 uv0 = {0, 0};
ImVec2 uv1 = {1, 1};
// Note: We can't easily do 90 or 270-degree rotations: https://github.com/ocornut/imgui/issues/3267
if (rw->texture.rotate_180) {
uv0 = (ImVec2){1, 1};
uv1 = (ImVec2){0, 0};
}
ImVec4 white = {1, 1, 1, 1};
ImTextureID id = (ImTextureID)(intptr_t)tex->id;
igImage(id, size, uv0, uv1, white, white);
@ -311,7 +306,6 @@ gui_window_record_render(struct gui_record_window *rw, struct gui_program *p)
draw_gst(rw);
#endif
window_draw_misc(rw);
// Pop the ID making everything unique.
igPopID();

3
src/xrt/state_trackers/gui/gui_window_record.h
View file

@ -58,7 +58,8 @@ struct gui_record_window
{
struct xrt_frame_context xfctx;
int scale;
float scale;
bool rotate_180;
struct xrt_frame_sink *sink;
struct gui_ogl_texture *ogl;