Bitmap preview in SSTV TX

firmware/application/CMakeLists.txt

@@ -188,6 +188,7 @@ set(CPPSRC
 	ui_setup.cpp
 	ui_soundboard.cpp
 	ui_spectrum.cpp
+	ui_sstvtx.cpp
 	ui_textentry.cpp
 	ui_touch_calibration.cpp
 	ui_transmitter.cpp

firmware/application/bitmap.hpp

@@ -1079,6 +1079,28 @@ static constexpr Bitmap bitmap_icon_audiotx {
 	{ 16, 16 }, bitmap_icon_audiotx_data
 };
 
+static constexpr uint8_t bitmap_icon_sstv_data[] = {
+	0x10, 0x08, 
+	0x20, 0x04, 
+	0x40, 0x02, 
+	0x80, 0x01, 
+	0xFF, 0xFF, 
+	0x03, 0xF8, 
+	0x5D, 0xF0, 
+	0x05, 0xD0, 
+	0x01, 0xF0, 
+	0x01, 0xD0, 
+	0x01, 0xF0, 
+	0x01, 0xD0, 
+	0x01, 0xF0, 
+	0x01, 0x90, 
+	0x03, 0x98, 
+	0xFF, 0xFF, 
+};
+static constexpr Bitmap bitmap_icon_sstv {
+	{ 16, 16 }, bitmap_icon_sstv_data
+};
+
 static constexpr uint8_t bitmap_icon_jammer_data[] = {
 	0xA6, 0x2C, 
 	0x73, 0x47, 

firmware/application/ui_navigation.cpp

@@ -49,6 +49,7 @@
 #include "ui_sd_wipe.hpp"
 #include "ui_setup.hpp"
 #include "ui_soundboard.hpp"
+#include "ui_sstvtx.hpp"
 #include "ui_whipcalc.hpp"
 #include "ui_whistle.hpp"
 
@@ -360,8 +361,8 @@ SystemMenuView::SystemMenuView(NavigationView& nav) {
 		{ "Replay",					ui::Color::grey(),	&bitmap_icon_replay,	[&nav](){ nav.push<NotImplementedView>(); } },
 		{ "Audio transmitters", 	ui::Color::green(),	&bitmap_icon_audiotx,	[&nav](){ nav.push<TransmitterAudioMenuView>(); } },
 		{ "Code transmitters", 		ui::Color::green(),	&bitmap_icon_codetx,	[&nav](){ nav.push<TransmitterCodedMenuView>(); } },
-		{ "SSTV transmitter", 		ui::Color::grey(),	nullptr,				[&nav](){ nav.push<NotImplementedView>(); } },
+		{ "SSTV transmitter", 		ui::Color::grey(),	&bitmap_icon_sstv,		[&nav](){ nav.push<SSTVTXView>(); } },
-		{ "Close Call",				ui::Color::orange(),&bitmap_icon_closecall,	[&nav](){ nav.push<CloseCallView>(); } },
+		{ "Close Call",				ui::Color::cyan(),	&bitmap_icon_closecall,	[&nav](){ nav.push<CloseCallView>(); } },
 		{ "Jammer", 				ui::Color::orange(),&bitmap_icon_jammer,	[&nav](){ nav.push<JammerView>(); } },
 		{ "Utilities",				ui::Color::purple(),&bitmap_icon_utilities,	[&nav](){ nav.push<UtilitiesView>(); } },
 		{ "Setup", 					ui::Color::white(),	&bitmap_icon_setup,		[&nav](){ nav.push<SetupMenuView>(); } },

firmware/application/ui_numbers.cpp

@@ -224,6 +224,7 @@ NumbersStationView::NumbersStationView(
 	baseband::run_image(portapack::spi_flash::image_tag_audio_tx);
 	
 	add_children({
+		&labels,
 		&symfield_code,
 		&check_armed,
 		&options_voices,
@@ -233,7 +234,7 @@ NumbersStationView::NumbersStationView(
 	});
 	
 	for (const auto& voice : voices)
-		voice_options.emplace_back(voice.dir.substr(0, 4), c);
+		voice_options.emplace_back(voice.dir.substr(0, 4), 0);
 	
 	options_voices.set_options(voice_options);
 	options_voices.on_change = [this](size_t i, int32_t) {

firmware/application/ui_sstvtx.cpp

@@ -0,0 +1,205 @@
+/*
+ * Copyright (C) 2015 Jared Boone, ShareBrained Technology, Inc.
+ * Copyright (C) 2016 Furrtek
+ * 
+ * This file is part of PortaPack.
+ *
+ * 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, 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; see the file COPYING.  If not, write to
+ * the Free Software Foundation, Inc., 51 Franklin Street,
+ * Boston, MA 02110-1301, USA.
+ */
+
+#include "ui_sstvtx.hpp"
+#include "string_format.hpp"
+
+#include "portapack.hpp"
+#include "hackrf_hal.hpp"
+
+#include <cstring>
+#include <stdio.h>
+
+using namespace portapack;
+
+namespace ui {
+
+void SSTVTXView::focus() {
+	if (file_error)
+		nav_.display_modal("No files", "No valid bitmaps\nin /sstv directory.", ABORT, nullptr);
+	else
+		options_bitmaps.focus();
+}
+
+void SSTVTXView::read_boundary(uint8_t * const buffer, uint32_t position, uint32_t length) {
+	uint32_t to_read, split;
+	uint8_t * buffer_copy = buffer;
+	
+	bmp_file.seek(position);
+	
+	// FatFS bug workaround: we can't read across 512 byte boundaries ?!
+	while (length) {
+		to_read = (length <= 512) ? length : 512;
+		if ((position & 512) != ((position + to_read - 1) & 512)) {
+			// Crossing: do 2 reads before and after the boundary
+			split = 512 - (position & 511);
+			bmp_file.read(buffer_copy, split);
+			bmp_file.read(buffer_copy + split, to_read - split);
+		} else {
+			// No crossing, just read normally
+			bmp_file.read(buffer_copy, to_read);
+		}
+		position += to_read;
+		buffer_copy += to_read;
+		length -= to_read;
+	}
+}
+
+void SSTVTXView::paint(Painter&) {
+	ui::Color line_buffer[160];
+	Coord line;
+	uint32_t data_idx, bmp_px, pixel_idx;
+	uint8_t pixels_buffer[320 * 3];		// 320 pixels @ 24bpp
+	
+	data_idx = bmp_header.image_data;
+	
+	for (line = 0; line < (256 / 2); line++) {
+		
+		// Buffer a whole line
+		read_boundary(pixels_buffer, data_idx, sizeof(pixels_buffer));
+		
+		for (bmp_px = 0; bmp_px < 160; bmp_px++) {
+			pixel_idx = bmp_px * 3 * 2;
+			line_buffer[bmp_px] = Color(pixels_buffer[pixel_idx + 2],
+										pixels_buffer[pixel_idx + 1],
+										pixels_buffer[pixel_idx + 0]);
+		}
+		portapack::display.render_line({ 16, 80 + 128 - line }, 160, line_buffer);
+		data_idx += sizeof(pixels_buffer) * 2;
+	}
+}
+
+SSTVTXView::~SSTVTXView() {
+	transmitter_model.disable();
+	baseband::shutdown();
+}
+
+void SSTVTXView::on_tuning_frequency_changed(rf::Frequency f) {
+	transmitter_model.set_tuning_frequency(f);
+}
+
+void SSTVTXView::start_tx() {
+	// Baseband SSTV TX code should have a 2 scanlines buffer, and ask
+	// for fill-up when there's 1 or less remaining. This should leave
+	// enough time for the code here to generate the scanline data
+	// before tx.
+	
+	const uint8_t VIS_code = 0b00011101;	// Scottie 2
+	
+	// Calibration:
+	// 1900 300ms
+	// 1200 10ms
+	// 1900 300ms
+	// VIS: (30ms * 10 = 300ms)
+	// 1200
+	// 00011101 (0=1300, 1=1100)
+	// 1200
+	
+	// Scottie 2: 320x256 px
+	
+	// V-sync ?
+	// First line: 1200 9ms
+	// Scanline:
+	// 1500 1.5ms
+	// Green
+	// 1500 1.5ms
+	// Blue
+	// 1200 9ms
+	// 1500 1.5ms
+	// Red
+	// Scanline time: 88.064ms (.2752ms/pixel @ 320 pixels/line)
+	
+	transmitter_model.set_sampling_rate(1536000U);
+	transmitter_model.set_rf_amp(true);
+	//transmitter_model.set_lna(40);
+	//transmitter_model.set_vga(40);
+	transmitter_model.set_baseband_bandwidth(1750000);
+	transmitter_model.enable();
+	
+	/*baseband::set_sstvtx_data(
+		(1536000 / 44100) - 1,
+		12000,
+		1,
+		false,
+		0
+	);*/
+}
+
+void SSTVTXView::on_bitmap_changed(size_t index) {
+	bmp_file.open("/sstv/" + bitmaps[index].string());
+	bmp_file.read(&bmp_header, sizeof(bmp_header));
+	set_dirty();
+}
+
+SSTVTXView::SSTVTXView(
+	NavigationView& nav
+) : nav_ (nav)
+{
+	std::vector<std::filesystem::path> file_list;
+	using option_t = std::pair<std::string, int32_t>;
+	using options_t = std::vector<option_t>;
+	options_t bitmap_options;
+	uint32_t c;
+	
+	// Search for valid bitmaps
+	file_list = scan_root_files(u"/sstv", u"*.bmp");
+	if (!file_list.size()) {
+		file_error = true;
+		return;
+	}
+	for (const auto& file_name : file_list) {
+		if (!bmp_file.open("/sstv/" + file_name.string()).is_valid()) {
+			bmp_file.read(&bmp_header, sizeof(bmp_header));
+			if ((bmp_header.signature == 0x4D42) &&
+				(bmp_header.width == 320) &&		// Must be == 320x256 pixels for now
+				(bmp_header.height == 256) &&
+				(bmp_header.planes == 1) &&
+				(bmp_header.bpp >= 24) &&			// 24 or 32 bpp
+				(bmp_header.compression == 0)) {	// No compression
+					bitmaps.push_back(file_name);
+			}
+		}
+	}
+	if (!bitmaps.size()) {
+		file_error = true;
+		return;
+	}
+	
+	//baseband::run_image(portapack::spi_flash::image_tag_sstv_tx);
+	
+	add_children({
+		&labels,
+		&options_bitmaps,
+		&text_mode
+	});
+	
+	for (const auto& bitmap : bitmaps)
+		bitmap_options.emplace_back(bitmap.string().substr(0, 16), 0);
+	
+	options_bitmaps.set_options(bitmap_options);
+	options_bitmaps.on_change = [this](size_t i, int32_t) {
+		this->on_bitmap_changed(i);
+	};
+	options_bitmaps.set_selected_index(0);
+}
+
+} /* namespace ui */

firmware/application/ui_sstvtx.hpp

@@ -0,0 +1,102 @@
+/*
+ * Copyright (C) 2015 Jared Boone, ShareBrained Technology, Inc.
+ * Copyright (C) 2016 Furrtek
+ * 
+ * This file is part of PortaPack.
+ *
+ * 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, 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; see the file COPYING.  If not, write to
+ * the Free Software Foundation, Inc., 51 Franklin Street,
+ * Boston, MA 02110-1301, USA.
+ */
+
+#ifndef __UI_SSTVTX_H__
+#define __UI_SSTVTX_H__
+
+#include "ui.hpp"
+#include "ui_widget.hpp"
+#include "ui_receiver.hpp"
+#include "ui_navigation.hpp"
+#include "ui_font_fixed_8x16.hpp"
+#include "baseband_api.hpp"
+#include "ui_transmitter.hpp"
+#include "message.hpp"
+#include "sstv.hpp"
+#include "file.hpp"
+#include "bmp.hpp"
+
+using namespace sstv;
+
+namespace ui {
+
+class SSTVTXView : public View {
+public:
+	SSTVTXView(NavigationView& nav);
+	~SSTVTXView();
+
+	void focus() override;
+	void paint(Painter&) override;
+	
+	std::string title() const override { return "SSTV transmit"; };
+	
+private:
+	NavigationView& nav_;
+	
+	File bmp_file { };
+	bmp_header_t bmp_header { };
+	std::vector<std::filesystem::path> bitmaps { };
+	bool file_error { false };
+
+	void read_boundary(uint8_t * buffer, uint32_t position, uint32_t length);
+	void on_bitmap_changed(size_t index);
+	void on_tuning_frequency_changed(rf::Frequency f);
+	void start_tx();
+	
+	Labels labels {
+		{ { 1 * 8, 1 * 8 }, "File:", Color::light_grey() }
+	};
+	
+	OptionsField options_bitmaps {
+		{ 6 * 8, 1 * 8 },
+		16,
+		{ }
+	};
+	Text text_mode {
+		{ 2 * 8, 4 * 8, 16 * 8, 16 },
+		"Scottie 2 (beta)"
+	};
+	
+	ProgressBar progressbar {
+		{ 16, 25 * 8, 208, 16 }
+	};
+	
+	TransmitterView tx_view {
+		16 * 16,
+		10000,
+		12
+	};
+	
+	/*MessageHandlerRegistration message_handler_fifo_signal {
+		Message::ID::RequestSignal,
+		[this](const Message* const p) {
+			const auto message = static_cast<const RequestSignalMessage*>(p);
+			if (message->signal == RequestSignalMessage::Signal::FillRequest) {
+				this->prepare_audio();
+			}
+		}
+	};*/
+};
+
+} /* namespace ui */
+
+#endif/*__UI_SSTVTX_H__*/

firmware/baseband/CMakeLists.txt

@@ -275,6 +275,20 @@ macro(DeclareTargets chunk_tag name)
 	set(BASEBAND_IMAGES ${BASEBAND_IMAGES} ${PROJECT_NAME}.img)
 endmacro()
 
+### ADS-B TX
+
+set(MODE_CPPSRC
+	proc_adsbtx.cpp
+)
+DeclareTargets(PADS ads)
+
+### AFSK
+
+set(MODE_CPPSRC
+	proc_afsk.cpp
+)
+DeclareTargets(PAFS afsk)
+
 ### AIS
 
 set(MODE_CPPSRC
@@ -289,6 +303,13 @@ set(MODE_CPPSRC
 )
 DeclareTargets(PAMA am_audio)
 
+### Audio transmit
+
+set(MODE_CPPSRC
+	proc_audiotx.cpp
+)
+DeclareTargets(PATX audio_tx)
+
 ### Capture
 
 set(MODE_CPPSRC
@@ -310,48 +331,6 @@ set(MODE_CPPSRC
 )
 DeclareTargets(PFSK fsktx)
 
-### POCSAG RX
-
-set(MODE_CPPSRC
-	proc_pocsag.cpp
-)
-DeclareTargets(PPOC pocsag)
-
-### NFM Audio
-
-set(MODE_CPPSRC
-	proc_nfm_audio.cpp
-)
-DeclareTargets(PNFM nfm_audio)
-
-### TPMS
-
-set(MODE_CPPSRC
-	proc_tpms.cpp
-)
-DeclareTargets(PTPM tpms)
-
-### WFM Audio
-
-set(MODE_CPPSRC
-	proc_wfm_audio.cpp
-)
-DeclareTargets(PWFM wfm_audio)
-
-### Wideband Spectrum
-
-set(MODE_CPPSRC
-	proc_wideband_spectrum.cpp
-)
-DeclareTargets(PSPE wideband_spectrum)
-
-### OOK
-
-set(MODE_CPPSRC
-	proc_ook.cpp
-)
-DeclareTargets(POOK ook)
-
 ### Jammer
 
 set(MODE_CPPSRC
@@ -359,13 +338,6 @@ set(MODE_CPPSRC
 )
 DeclareTargets(PJAM jammer)
 
-### Audio transmit
-
-set(MODE_CPPSRC
-	proc_audiotx.cpp
-)
-DeclareTargets(PATX audio_tx)
-
 ### Microphone transmit
 
 set(MODE_CPPSRC
@@ -373,12 +345,40 @@ set(MODE_CPPSRC
 )
 DeclareTargets(PMTX mic_tx)
 
-### AFSK
+### NFM Audio
 
 set(MODE_CPPSRC
-	proc_afsk.cpp
+	proc_nfm_audio.cpp
 )
-DeclareTargets(PAFS afsk)
+DeclareTargets(PNFM nfm_audio)
+
+### No op
+
+set(MODE_CPPSRC
+	proc_noop.cpp
+)
+DeclareTargets(PNOP no_operation)
+
+### OOK
+
+set(MODE_CPPSRC
+	proc_ook.cpp
+)
+DeclareTargets(POOK ook)
+
+### POCSAG RX
+
+set(MODE_CPPSRC
+	proc_pocsag.cpp
+)
+DeclareTargets(PPOC pocsag)
+
+### RDS
+
+set(MODE_CPPSRC
+	proc_rds.cpp
+)
+DeclareTargets(PRDS rds)
 
 ### Replay
 
@@ -394,27 +394,26 @@ set(MODE_CPPSRC
 )
 DeclareTargets(PTON tones)
 
-### RDS
+### TPMS
 
 set(MODE_CPPSRC
-	proc_rds.cpp
+	proc_tpms.cpp
 )
-DeclareTargets(PRDS rds)
+DeclareTargets(PTPM tpms)
 
-### ADS-B TX
+### Wideband Spectrum
 
 set(MODE_CPPSRC
-	proc_adsbtx.cpp
+	proc_wideband_spectrum.cpp
 )
-DeclareTargets(PADS ads)
+DeclareTargets(PSPE wideband_spectrum)
 
-
+### WFM Audio
-### No op
 
 set(MODE_CPPSRC
-	proc_noop.cpp
+	proc_wfm_audio.cpp
 )
-DeclareTargets(PNOP no_operation)
+DeclareTargets(PWFM wfm_audio)
 
 ### HackRF "factory" firmware
 

firmware/common/sstv.hpp

@@ -0,0 +1,37 @@
+/*
+ * Copyright (C) 2015 Jared Boone, ShareBrained Technology, Inc.
+ * Copyright (C) 2016 Furrtek
+ * 
+ * This file is part of PortaPack.
+ *
+ * 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, 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; see the file COPYING.  If not, write to
+ * the Free Software Foundation, Inc., 51 Franklin Street,
+ * Boston, MA 02110-1301, USA.
+ */
+ 
+namespace sstv {
+
+struct sstv_tone {
+	uint16_t frequency;
+	uint16_t duration;
+};
+
+struct sstv_scanline {
+	sstv_tone start_tone;
+	sstv_tone gap_tone;
+	uint8_t luma[320];
+};
+
+} /* namespace sstv */
+