303 lines
7.8 KiB
C++
303 lines
7.8 KiB
C++
/*
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* Copyright (C) 2016 Robin Gareus <robin@gareus.org>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#include <math.h>
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#include "pbd/compose.h"
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#include "maschine2.h"
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#include "m2controls.h"
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#include "m2_dev_mikro.h"
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#include <pangomm/fontdescription.h>
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#include "images.h"
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static size_t mikro_png_readoff = 0;
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static Cairo::ErrorStatus maschine_png_read (unsigned char* d, unsigned int s) {
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if (s + mikro_png_readoff > sizeof (mikro_png)) {
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return CAIRO_STATUS_READ_ERROR;
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}
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memcpy (d, &mikro_png[mikro_png_readoff], s);
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mikro_png_readoff += s;
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return CAIRO_STATUS_SUCCESS;
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}
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using namespace ArdourSurface;
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Maschine2Mikro::Maschine2Mikro () : M2Device ()
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{
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_surface = Cairo::ImageSurface::create (Cairo::FORMAT_ARGB32, 128, 64);
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clear (true);
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}
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void
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Maschine2Mikro::clear (bool splash)
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{
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M2Device::clear (splash);
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memset (&ctrl_in, 0, sizeof (ctrl_in));
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memset (pad, 0, sizeof (pad));
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_lights[0] = 0xff;
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for (int l = 0; l < 4; ++l) {
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_img[l][0] = 0xff;
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}
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Cairo::RefPtr<Cairo::Context> cr = Cairo::Context::create (_surface);
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if (!splash) {
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mikro_png_readoff = 0;
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Cairo::RefPtr<Cairo::ImageSurface> sf = Cairo::ImageSurface::create_from_png_stream (sigc::ptr_fun (maschine_png_read));
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cr->set_source(sf, 0, 0);
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cr->paint ();
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} else {
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cr->set_operator (Cairo::OPERATOR_CLEAR);
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cr->paint ();
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cr->set_operator (Cairo::OPERATOR_OVER);
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Glib::RefPtr<Pango::Layout> layout = Pango::Layout::create (cr);
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Pango::FontDescription fd ("Sans Bold 18px");
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layout->set_font_description (fd);
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layout->set_alignment (Pango::ALIGN_CENTER);
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layout->set_text (string_compose ("%1\n%2", PROGRAM_NAME, VERSIONSTRING));
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int tw, th;
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layout->get_pixel_size (tw, th);
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cr->move_to (128 - tw * 0.5, 32 - th * 0.5);
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cr->set_source_rgb (1, 1, 1);
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layout->show_in_cairo_context(cr);
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}
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//_surface->write_to_png ("/tmp/amaschine.png");
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}
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void
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Maschine2Mikro::read (hid_device* handle, M2Contols* ctrl)
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{
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assert (ctrl);
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while (true) {
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uint8_t buf[256];
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int res = hid_read (handle, buf, 256);
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if (res < 1) {
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return;
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}
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// TODO parse incrementally if chunked at 64
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if (res > 4 && buf[0] == 0x01) {
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memcpy (&ctrl_in, &buf[1], sizeof (ctrl_in));
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assign_controls (ctrl);
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}
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else if (res > 32 && buf[0] == 0x20) {
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for (unsigned int i = 0; i < 16; ++i) {
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uint8_t v0 = buf[1 + 2 * i];
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uint8_t v1 = buf[2 + 2 * i];
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uint8_t p = (v1 & 0xf0) >> 4;
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pad[p] = ((v1 & 0xf) << 8) | v0;
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unsigned int pid = 15 - ((i & 0xc) + (3 - (i & 0x3)));
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ctrl->pad (pid)->set_value (pad[p]);
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}
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// TODO read complete 65 byte msg, expect buf[33] == 0x00
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}
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}
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}
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void
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Maschine2Mikro::write (hid_device* handle, M2Contols* ctrl)
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{
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bump_blink ();
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uint8_t buf[265];
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//TODO double-buffer, send changes only if needed
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/* 30 control buttons, 8-bit brightness,
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* + 16 RGB pads
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*/
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buf[0] = 0x80;
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set_lights (ctrl, &buf[1]);
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set_pads (ctrl, &buf[31]);
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if (memcmp (_lights, buf, 79)) {
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hid_write (handle, buf, 79);
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memcpy (_lights, buf, 79);
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}
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if (_splashcnt < _splashtime ) {
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++_splashcnt;
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}
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else if (! vblank () /* EMIT SIGNAL*/) {
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/* check clear/initial draw */
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if (_img[0][0] != 0xff) {
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return;
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}
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}
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/* display */
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_surface->flush ();
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const unsigned char* img = _surface->get_data ();
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const int stride = _surface->get_stride ();
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memset (buf, 0, 9);
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buf[0] = 0xe0;
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for (int l = 0; l < 4; ++l) {
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buf[1] = 32 * l;
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buf[5] = 0x20;
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buf[7] = 0x08;
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int y0 = l * 16;
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for (int p = 0; p < 256; ++p) {
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uint8_t v = 0;
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const int y = y0 + p / 16;
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for (int b = 0; b < 8; ++b) {
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const int x = (p % 16) * 8 + b;
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int off = y * stride + x * 4 /* ARGB32 */;
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/* off + 0 == blue
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* off + 1 == green
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* off + 2 == red
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* off + 3 == alpha
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*/
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/* calculate lightness */
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uint8_t l = std::max (img[off + 0], std::max (img[off + 1], img[off + 2]));
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if (l > 0x7e) { // TODO: take alpha channel into account?!
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v |= 1 << (7 - b);
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}
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}
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buf[9 + p] = v;
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}
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if (memcmp (_img[l], buf, 265)) {
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hid_write (handle, buf, 265);
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memcpy (_img[l], buf, 265);
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}
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}
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}
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void
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Maschine2Mikro::assign_controls (M2Contols* ctrl) const
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{
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ctrl->button (M2Contols::BtnShift, M2Contols::ModNone)->set_active (ctrl_in.trs_shift ? true : false);
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M2Contols::Modifier mod = ctrl->button (M2Contols::BtnShift, M2Contols::ModNone)->active () ? M2Contols::ModShift : M2Contols::ModNone;
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bool change = false;
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#define ASSIGN(BTN, VAR) \
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change |= ctrl->button (M2Contols:: BTN, mod)->set_active (ctrl_in. VAR ? true : false)
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ASSIGN (BtnRestart, trs_restart);
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ASSIGN (BtnStepLeft, trs_left);
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ASSIGN (BtnStepRight, trs_right);
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ASSIGN (BtnGrid, trs_grid);
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ASSIGN (BtnPlay, trs_play);
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ASSIGN (BtnRec, trs_rec);
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ASSIGN (BtnErase, trs_erase);
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ASSIGN (BtnGroupA, group);
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ASSIGN (BtnBrowse, browse);
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ASSIGN (BtnSampling, sampling);
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ASSIGN (BtnNoteRepeat, note_repeat);
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ASSIGN (BtnWheel, mst_wheel);
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ASSIGN (BtnTop0, f1);
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ASSIGN (BtnTop1, f1);
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ASSIGN (BtnTop2, f3);
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ASSIGN (BtnControl, control);
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ASSIGN (BtnNavigate, navigate); // XXX
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ASSIGN (BtnNavLeft, nav_left);
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ASSIGN (BtnNavRight, nav_right);
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ASSIGN (BtnEnter, main);
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ASSIGN (BtnScene, pads_scene);
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ASSIGN (BtnPattern, pads_pattern);
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ASSIGN (BtnPadMode, pads_mode);
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ASSIGN (BtnNavigate, pads_navigate);
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ASSIGN (BtnDuplicate, pads_duplicate);
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ASSIGN (BtnSelect, pads_select);
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ASSIGN (BtnSolo, pads_solo);
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ASSIGN (BtnMute, pads_mute);
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#undef ASSIGN
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change |= ctrl->encoder (0)->set_value (ctrl_in.mst_wheel_pos);
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if (change && mod == M2Contols::ModShift) {
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M2ToggleHoldButton* btn = dynamic_cast<M2ToggleHoldButton*> (ctrl->button (M2Contols::BtnShift, M2Contols::ModNone));
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if (btn) {
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btn->unset_active_on_release ();
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}
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}
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}
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#define LIGHT(BIT, BTN) \
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b[BIT] = ctrl->button (M2Contols:: BTN, mod)->lightness (_blink_shade)
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void
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Maschine2Mikro::set_pads (M2Contols* ctrl, uint8_t* b) const
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{
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if (!ctrl) {
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memset (b, 0, 48);
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return;
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}
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for (unsigned int i = 0; i < 16; ++i) {
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unsigned int pid = 15 - ((i & 0xc) + (3 - (i & 0x3)));
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ctrl->pad (pid)->color (b[i * 3], b[1 + i * 3], b[2 + i * 3]);
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}
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}
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void
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Maschine2Mikro::set_lights (M2Contols* ctrl, uint8_t* b) const
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{
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if (!ctrl) {
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memset (b, 0, 29);
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return;
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}
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M2Contols::Modifier mod = ctrl->button (M2Contols::BtnShift, M2Contols::ModNone)->active () ? M2Contols::ModShift : M2Contols::ModNone;
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LIGHT ( 0, BtnTop0); // F1
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LIGHT ( 1, BtnTop1); // F2
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LIGHT ( 2, BtnTop2); // F3
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LIGHT ( 3, BtnControl);
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LIGHT ( 4, BtnNavigate); // XXX
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LIGHT ( 5, BtnNavLeft);
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LIGHT ( 6, BtnNavRight);
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LIGHT ( 7, BtnEnter); // Main
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const uint32_t rgb = ctrl->button (M2Contols::BtnGroupA, mod)->color (_blink_shade);
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b[8] = (rgb >> 0) & 0xff;
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b[9] = (rgb >> 8) & 0xff;
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b[10] = (rgb >> 16) & 0xff;
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LIGHT (11, BtnBrowse);
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LIGHT (12, BtnSampling);
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LIGHT (13, BtnNoteRepeat);
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LIGHT (14, BtnRestart);
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LIGHT (15, BtnStepLeft);
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LIGHT (16, BtnStepRight);
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LIGHT (17, BtnGrid);
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LIGHT (18, BtnPlay);
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LIGHT (19, BtnRec);
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LIGHT (20, BtnErase);
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LIGHT (21, BtnShift);
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LIGHT (22, BtnScene);
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LIGHT (23, BtnPattern);
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LIGHT (24, BtnPadMode);
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LIGHT (25, BtnNavigate);
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LIGHT (26, BtnDuplicate);
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LIGHT (27, BtnSelect);
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LIGHT (28, BtnSolo);
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LIGHT (29, BtnMute);
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}
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