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livetrax/libs/surfaces/maschine2/m2_dev_mk2.cc

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/*
* Copyright (C) 2016 Robin Gareus <robin@gareus.org>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include <math.h>
#include "pbd/compose.h"
#include "maschine2.h"
#include "m2controls.h"
#include "m2_dev_mk2.h"
#include <pangomm/fontdescription.h>
#include "images.h"
static size_t maschine_png_readoff = 0;
static Cairo::ErrorStatus maschine_png_read (unsigned char* d, unsigned int s) {
if (s + maschine_png_readoff > sizeof (maschine_png)) {
return CAIRO_STATUS_READ_ERROR;
}
memcpy (d, &maschine_png[maschine_png_readoff], s);
maschine_png_readoff += s;
return CAIRO_STATUS_SUCCESS;
}
using namespace ArdourSurface;
Maschine2Mk2::Maschine2Mk2 () : M2Device ()
{
_surface = Cairo::ImageSurface::create (Cairo::FORMAT_ARGB32, 512, 64);
clear (true);
}
void
Maschine2Mk2::clear (bool splash)
{
M2Device::clear (splash);
memset (&ctrl_in, 0, sizeof (ctrl_in));
memset (pad, 0, sizeof (pad));
ctrl80[0] = 0xff;
ctrl81[0] = 0xff;
ctrl82[0] = 0xff;
for (int d = 0; d < 2; ++d) {
for (int l = 0; l < 8; ++l) {
_img[d][l][0] = 0xff;
}
}
#if 0
Cairo::RefPtr<Cairo::Context> c = Cairo::Context::create (_surface);
c->set_operator (Cairo::OPERATOR_CLEAR);
c->paint ();
return;
#endif
maschine_png_readoff = 0;
Cairo::RefPtr<Cairo::ImageSurface> sf = Cairo::ImageSurface::create_from_png_stream (sigc::ptr_fun (maschine_png_read));
Cairo::RefPtr<Cairo::Context> cr = Cairo::Context::create (_surface);
cr->set_source(sf, 0, 0);
cr->paint ();
Glib::RefPtr<Pango::Layout> layout = Pango::Layout::create (cr);
Pango::FontDescription fd ("Sans Bold 18px");
layout->set_font_description (fd);
layout->set_alignment (Pango::ALIGN_CENTER);
int cx;
if (splash) {
layout->set_text (string_compose ("%1\n%2", PROGRAM_NAME, VERSIONSTRING));
cx = 384;
} else {
cr->rectangle (326, 0, 186, 64);
cr->set_source_rgb (0, 0, 0);
cr->fill ();
layout->set_text ("Keep Groovin'");
cx = 421;
}
int tw, th;
layout->get_pixel_size (tw, th);
cr->move_to (cx - tw * 0.5, 32 - th * 0.5);
cr->set_source_rgb (1, 1, 1);
layout->show_in_cairo_context(cr);
//_surface->write_to_png ("/tmp/amaschine.png");
}
void
Maschine2Mk2::read (hid_device* handle, M2Contols* ctrl)
{
assert (ctrl);
while (true) {
uint8_t buf[256];
int res = hid_read (handle, buf, 256);
if (res < 1) {
return;
}
// TODO parse incrementally if chunked at 64
if (res > 24 && buf[0] == 0x01) {
memcpy (&ctrl_in, &buf[1], sizeof (ctrl_in));
assign_controls (ctrl);
}
else if (res > 32 && buf[0] == 0x20) {
for (unsigned int i = 0; i < 16; ++i) {
uint8_t v0 = buf[1 + 2 * i];
uint8_t v1 = buf[2 + 2 * i];
uint8_t p = (v1 & 0xf0) >> 4;
pad[p] = ((v1 & 0xf) << 8) | v0;
unsigned int pid = 15 - ((i & 0xc) + (3 - (i & 0x3)));
ctrl->pad (pid)->set_value (pad[p]);
}
// TODO read complete 65 byte msg, expect buf[33] == 0x00
}
}
}
void
Maschine2Mk2::write (hid_device* handle, M2Contols* ctrl)
{
bump_blink ();
uint8_t buf[265];
//TODO double-buffer, send changes only if needed
/* 31 control buttons: 8 mst + 8 top + 8 pads + 7 mst
* 8-bit brightness
*/
buf[0] = 0x82;
set_colors82 (ctrl, &buf[1]);
if (memcmp (ctrl82, buf, 32)) {
hid_write (handle, buf, 32);
memcpy (ctrl82, buf, 32);
}
/* 8 group rgb|rgb + 8 on/off transport buttons */
buf[0] = 0x81;
set_colors81 (ctrl, &buf[1]);
if (memcmp (ctrl81, buf, 57)) {
hid_write (handle, buf, 57);
memcpy (ctrl81, buf, 57);
}
/* 16 RGB grid pads */
buf[0] = 0x80;
set_colors80 (ctrl, &buf[1]);
if (memcmp (ctrl80, buf, 49)) {
hid_write (handle, buf, 49);
memcpy (ctrl80, buf, 49);
}
if (_splashcnt < _splashtime) {
++_splashcnt;
}
else if (! vblank () /* EMIT SIGNAL*/) {
/* check clear/initial draw */
if (_img[0][0][0] != 0xff) {
return;
}
}
/* display */
_surface->flush ();
const unsigned char* img = _surface->get_data ();
const int stride = _surface->get_stride ();
for (int d = 0; d < 2; ++d) {
memset (buf, 0, 9);
buf[0] = 0xe0 | d;
for (int l = 0; l < 8; ++l) {
buf[3] = 8 * l;
buf[5] = 0x20;
buf[7] = 0x08;
int y0 = l * 8;
int x0 = d * 256;
for (int p = 0; p < 256; ++p) {
uint8_t v = 0;
const int y = y0 + p / 32;
for (int b = 0; b < 8; ++b) {
const int x = x0 + (p % 32) * 8 + b;
int off = y * stride + x * 4 /* ARGB32 */;
/* off + 0 == blue
* off + 1 == green
* off + 2 == red
* off + 3 == alpha
*/
/* calculate lightness */
uint8_t l = std::max (img[off + 0], std::max (img[off + 1], img[off + 2]));
if (l > 0x7e) { // TODO: take alpha channel into account?!
v |= 1 << (7 - b);
}
}
buf[9 + p] = v;
}
if (memcmp (_img[d][l], buf, 265)) {
hid_write (handle, buf, 265);
memcpy (_img[d][l], buf, 265);
}
}
}
}
void
Maschine2Mk2::assign_controls (M2Contols* ctrl) const
{
ctrl->button (M2Contols::BtnShift, M2Contols::ModNone)->set_active (ctrl_in.trs_shift ? true : false);
M2Contols::Modifier mod = ctrl->button (M2Contols::BtnShift, M2Contols::ModNone)->active () ? M2Contols::ModShift : M2Contols::ModNone;
bool change = false;
#define ASSIGN(BTN, VAR) \
change |= ctrl->button (M2Contols:: BTN, mod)->set_active (ctrl_in. VAR ? true : false)
ASSIGN (BtnRestart, trs_restart);
ASSIGN (BtnStepLeft, trs_left);
ASSIGN (BtnStepRight, trs_right);
ASSIGN (BtnGrid, trs_grid);
ASSIGN (BtnPlay, trs_play);
ASSIGN (BtnRec, trs_rec);
ASSIGN (BtnErase, trs_erase);
ASSIGN (BtnScene, pads_scene);
ASSIGN (BtnPattern, pads_pattern);
ASSIGN (BtnPadMode, pads_mode);
ASSIGN (BtnNavigate, pads_navigate);
ASSIGN (BtnDuplicate, pads_duplicate);
ASSIGN (BtnSelect, pads_select);
ASSIGN (BtnSolo, pads_solo);
ASSIGN (BtnMute, pads_mute);
ASSIGN (BtnControl, top_control);
ASSIGN (BtnStep, top_step);
ASSIGN (BtnBrowse, top_browse);
ASSIGN (BtnSampling, top_sampling);
ASSIGN (BtnSelLeft, top_left);
ASSIGN (BtnSelRight, top_right);
ASSIGN (BtnAll, top_all);
ASSIGN (BtnAuto, top_auto);
ASSIGN (BtnVolume, mst_volume);
ASSIGN (BtnSwing, mst_swing);
ASSIGN (BtnTempo, mst_tempo);
ASSIGN (BtnNavLeft, mst_left);
ASSIGN (BtnNavRight, mst_right);
ASSIGN (BtnEnter, mst_enter);
ASSIGN (BtnNoteRepeat, mst_note_repeat);
ASSIGN (BtnWheel, mst_wheel);
ASSIGN (BtnGroupA, groups_a);
ASSIGN (BtnGroupB, groups_b);
ASSIGN (BtnGroupC, groups_c);
ASSIGN (BtnGroupD, groups_d);
ASSIGN (BtnGroupE, groups_e);
ASSIGN (BtnGroupF, groups_f);
ASSIGN (BtnGroupG, groups_g);
ASSIGN (BtnGroupH, groups_h);
ASSIGN (BtnTop0, top_0);
ASSIGN (BtnTop1, top_1);
ASSIGN (BtnTop2, top_2);
ASSIGN (BtnTop3, top_3);
ASSIGN (BtnTop4, top_4);
ASSIGN (BtnTop5, top_5);
ASSIGN (BtnTop6, top_6);
ASSIGN (BtnTop7, top_7);
#undef ASSIGN
change |= ctrl->encoder (0)->set_value (ctrl_in.mst_wheel_pos);
for (int i = 0; i < 8; ++i) {
change |= ctrl->encoder (1 + i)->set_value (ctrl_in.top_knobs[i]);
}
if (change && mod == M2Contols::ModShift) {
M2ToggleHoldButton* btn = dynamic_cast<M2ToggleHoldButton*> (ctrl->button (M2Contols::BtnShift, M2Contols::ModNone));
if (btn) {
btn->unset_active_on_release ();
}
}
}
#define LIGHT(BIT, BTN) \
b[BIT] = ctrl->button (M2Contols:: BTN, mod)->lightness (_blink_shade)
#define COLOR(BIT, BTN) \
{ \
const uint32_t rgb = ctrl->button (M2Contols:: BTN, mod)->color (_blink_shade); \
b[0 + BIT ] = (rgb >> 0) & 0xff; \
b[1 + BIT ] = (rgb >> 8) & 0xff; \
b[2 + BIT ] = (rgb >> 16) & 0xff; \
b[3 + BIT ] = (rgb >> 0) & 0xff; \
b[4 + BIT ] = (rgb >> 8) & 0xff; \
b[5 + BIT ] = (rgb >> 16) & 0xff; \
}
void
Maschine2Mk2::set_colors80 (M2Contols* ctrl, uint8_t* b) const
{
if (!ctrl) {
memset (b, 0, 48);
return;
}
for (unsigned int i = 0; i < 16; ++i) {
unsigned int pid = 15 - ((i & 0xc) + (3 - (i & 0x3)));
ctrl->pad (pid)->color (b[i * 3], b[1 + i * 3], b[2 + i * 3]);
}
}
void
Maschine2Mk2::set_colors81 (M2Contols* ctrl, uint8_t* b) const
{
if (!ctrl) {
memset (b, 0, 56);
return;
}
M2Contols::Modifier mod = ctrl->button (M2Contols::BtnShift, M2Contols::ModNone)->active () ? M2Contols::ModShift : M2Contols::ModNone;
COLOR ( 0, BtnGroupA);
COLOR ( 6, BtnGroupB);
COLOR (12, BtnGroupC);
COLOR (18, BtnGroupD);
COLOR (24, BtnGroupE);
COLOR (30, BtnGroupF);
COLOR (36, BtnGroupG);
COLOR (42, BtnGroupH);
LIGHT (48, BtnRestart);
LIGHT (49, BtnStepLeft);
LIGHT (50, BtnStepRight);
LIGHT (51, BtnGrid);
LIGHT (52, BtnPlay);
LIGHT (53, BtnRec);
LIGHT (54, BtnErase);
LIGHT (55, BtnShift);
}
void
Maschine2Mk2::set_colors82 (M2Contols* ctrl, uint8_t* b) const
{
if (!ctrl) {
memset (b, 0, 31);
return;
}
M2Contols::Modifier mod = ctrl->button (M2Contols::BtnShift, M2Contols::ModNone)->active () ? M2Contols::ModShift : M2Contols::ModNone;
LIGHT ( 0, BtnControl);
LIGHT ( 1, BtnStep);
LIGHT ( 2, BtnBrowse);
LIGHT ( 3, BtnSampling);
LIGHT ( 4, BtnSelLeft);
LIGHT ( 5, BtnSelRight);
LIGHT ( 6, BtnAll);
LIGHT ( 7, BtnAuto);
LIGHT ( 8, BtnTop0);
LIGHT ( 9, BtnTop1);
LIGHT (10, BtnTop2);
LIGHT (11, BtnTop3);
LIGHT (12, BtnTop4);
LIGHT (13, BtnTop5);
LIGHT (14, BtnTop6);
LIGHT (15, BtnTop7);
LIGHT (16, BtnScene);
LIGHT (17, BtnPattern);
LIGHT (18, BtnPadMode);
LIGHT (19, BtnNavigate);
LIGHT (20, BtnDuplicate);
LIGHT (21, BtnSelect);
LIGHT (22, BtnSolo);
LIGHT (23, BtnMute);
LIGHT (24, BtnVolume);
LIGHT (25, BtnSwing);
LIGHT (26, BtnTempo);
LIGHT (27, BtnNavLeft);
LIGHT (28, BtnNavRight);
LIGHT (29, BtnEnter);
LIGHT (30, BtnNoteRepeat);
}
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