diff options
Diffstat (limited to 'plugins/eg-scope.lv2/examploscope_ui.c')
| -rw-r--r-- | plugins/eg-scope.lv2/examploscope_ui.c | 71 |
1 files changed, 32 insertions, 39 deletions
diff --git a/plugins/eg-scope.lv2/examploscope_ui.c b/plugins/eg-scope.lv2/examploscope_ui.c index e601843..4f366aa 100644 --- a/plugins/eg-scope.lv2/examploscope_ui.c +++ b/plugins/eg-scope.lv2/examploscope_ui.c @@ -1,27 +1,14 @@ -/* - Copyright 2013 Robin Gareus <robin@gareus.org> - - Permission to use, copy, modify, and/or distribute this software for any - purpose with or without fee is hereby granted, provided that the above - copyright notice and this permission notice appear in all copies. - - THIS SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES - WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF - MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR - ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES - WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN - ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF - OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. -*/ +// Copyright 2013 Robin Gareus <robin@gareus.org> +// SPDX-License-Identifier: ISC -#include "./uris.h" +#include "uris.h" -#include "lv2/atom/atom.h" -#include "lv2/atom/forge.h" -#include "lv2/atom/util.h" -#include "lv2/core/lv2.h" -#include "lv2/ui/ui.h" -#include "lv2/urid/urid.h" +#include <lv2/atom/atom.h> +#include <lv2/atom/forge.h> +#include <lv2/atom/util.h> +#include <lv2/core/lv2.h> +#include <lv2/ui/ui.h> +#include <lv2/urid/urid.h> #include <cairo.h> #include <gdk/gdk.h> @@ -123,6 +110,8 @@ send_ui_state(LV2UI_Handle handle) lv2_atom_total_size(msg), ui->uris.atom_eventTransfer, msg); + + lv2_atom_forge_set_buffer(&ui->forge, NULL, 0); } /** Notify backend that UI is closed. */ @@ -147,6 +136,8 @@ send_ui_disable(LV2UI_Handle handle) lv2_atom_total_size(msg), ui->uris.atom_eventTransfer, msg); + + lv2_atom_forge_set_buffer(&ui->forge, NULL, 0); } /** @@ -180,7 +171,7 @@ send_ui_enable(LV2UI_Handle handle) static gboolean on_cfg_changed(GtkWidget* widget, gpointer data) { - EgScopeUI* ui = (EgScopeUI*)data; + const EgScopeUI* ui = (const EgScopeUI*)data; if (!ui->updating) { // Only send UI state if the change is from user interaction send_ui_state(data); @@ -219,6 +210,7 @@ on_expose_event(GtkWidget* widget, GdkEventExpose* ev, gpointer data) assert(start < DAWIDTH); assert(end <= DAWIDTH); assert(start < end); + assert(ui->n_channels <= 2U); for (uint32_t c = 0; c < ui->n_channels; ++c) { ScoChan* chn = &ui->chn[c]; @@ -232,10 +224,10 @@ on_expose_event(GtkWidget* widget, GdkEventExpose* ev, gpointer data) * - (DAHEIGHT / 2) * (VAL) * (GAIN) * ) */ - const float chn_y_offset = DAHEIGHT * c + DAHEIGHT * 0.5f - 0.5f; - const float chn_y_scale = DAHEIGHT * 0.5f * gain; + const float chn_y_offset = (DAHEIGHT * c) + (DAHEIGHT * 0.5f) - 0.5f; + const float chn_y_scale = (DAHEIGHT * 0.5f) * gain; -#define CYPOS(VAL) (chn_y_offset - (VAL)*chn_y_scale) +#define CYPOS(VAL) (chn_y_offset - ((VAL) * chn_y_scale)) cairo_save(cr); @@ -261,7 +253,9 @@ on_expose_event(GtkWidget* widget, GdkEventExpose* ev, gpointer data) for (uint32_t i = start; i < end; ++i) { if (i == chn->idx) { continue; - } else if (i % 2) { + } + + if (i % 2) { cairo_line_to(cr, i - .5, CYPOS(chn->data_min[i])); cairo_line_to(cr, i - .5, CYPOS(chn->data_max[i])); ++pathlength; @@ -303,15 +297,15 @@ on_expose_event(GtkWidget* widget, GdkEventExpose* ev, gpointer data) // Channel separator if (c > 0) { cairo_set_source_rgba(cr, .5, .5, .5, 1.0); - cairo_move_to(cr, 0, DAHEIGHT * c - .5); - cairo_line_to(cr, DAWIDTH, DAHEIGHT * c - .5); + cairo_move_to(cr, 0, (DAHEIGHT * c) - .5); + cairo_line_to(cr, DAWIDTH, (DAHEIGHT * c) - .5); cairo_stroke(cr); } // Zero scale line cairo_set_source_rgba(cr, .3, .3, .7, .5); - cairo_move_to(cr, 0, DAHEIGHT * (c + .5) - .5); - cairo_line_to(cr, DAWIDTH, DAHEIGHT * (c + .5) - .5); + cairo_move_to(cr, 0, (DAHEIGHT * (c + .5)) - .5); + cairo_line_to(cr, DAWIDTH, (DAHEIGHT * (c + .5)) - .5); cairo_stroke(cr); } @@ -338,12 +332,12 @@ on_expose_event(GtkWidget* widget, GdkEventExpose* ev, gpointer data) and https://github.com/x42/sisco.lv2 */ static int -process_channel(EgScopeUI* ui, - ScoChan* chn, - const size_t n_elem, - float const* data, - uint32_t* idx_start, - uint32_t* idx_end) +process_channel(const EgScopeUI* ui, + ScoChan* chn, + const size_t n_elem, + float const* data, + uint32_t* idx_start, + uint32_t* idx_end) { int overflow = 0; *idx_start = chn->idx; @@ -666,8 +660,7 @@ static const LV2UI_Descriptor descriptor = {SCO_URI "#ui", port_event, NULL}; -LV2_SYMBOL_EXPORT -const LV2UI_Descriptor* +LV2_SYMBOL_EXPORT const LV2UI_Descriptor* lv2ui_descriptor(uint32_t index) { return index == 0 ? &descriptor : NULL; |