found formula library; cleaned up wxmain file split

gui/Makefile

@@ -2,7 +2,7 @@ CXX = g++-10
 CXXFLAGS = --std=c++20 -ggdb -O0 \
            -Wall -Wextra -pedantic \
            -Wno-deprecated-copy \
-           -Iserial/include \
+           -Iserial/include -IMETL/include -IMETL/dependencies/PEGTL/include \
            $(shell wx-config --cxxflags)
 
 CXXFILES = serial/src/serial.cc \

gui/wxmain.cpp

@@ -10,7 +10,6 @@
  */
 
 #include "wxmain.hpp"
-#include "wxsiggen.hpp"
 
 #include <wx/combobox.h>
 #include <wx/dcclient.h>
@@ -55,9 +54,6 @@ enum Id {
     MCodeDisassemble
 };
 
-#include "wxmain_mfile.h"
-#include "wxmain_mrun.h"
-
 MainFrame::MainFrame() :
     wxFrame(nullptr, wxID_ANY, "stmdspgui", wxDefaultPosition, wxSize(640, 800))
 {

gui/wxmain_devdata.cpp

@@ -0,0 +1,167 @@
+#include "wxmain_devdata.h"
+
+const std::array<wxString, 6> srateValues {
+    "8 kS/s",
+    "16 kS/s",
+    "20 kS/s",
+    "32 kS/s",
+    "48 kS/s",
+    "96 kS/s"
+};
+const std::array<unsigned int, 6> srateNums {
+    8000,
+    16000,
+    20000,
+    32000,
+    48000,
+    96000
+};
+
+const char *makefile_text_h7 = R"make(
+all:
+	@arm-none-eabi-g++ -x c++ -Os -fno-exceptions -fno-rtti \
+                       -mcpu=cortex-m7 -mthumb -mfloat-abi=hard -mfpu=fpv5-d16 -mtune=cortex-m7 \
+	                   -nostartfiles \
+	                   -Wl,-Ttext-segment=0x00000000 -Wl,-zmax-page-size=512 -Wl,-eprocess_data_entry \
+	                   $0 -o $0.o
+	@cp $0.o $0.orig.o
+	@arm-none-eabi-strip -s -S --strip-unneeded $0.o
+	@arm-none-eabi-objcopy --remove-section .ARM.attributes \
+                           --remove-section .comment \
+                           --remove-section .noinit \
+                           $0.o
+	arm-none-eabi-size $0.o
+)make";
+const char *makefile_text_l4 = R"make(
+all:
+	@arm-none-eabi-g++ -x c++ -Os -fno-exceptions -fno-rtti \
+	                   -mcpu=cortex-m4 -mthumb -mfloat-abi=hard -mfpu=fpv4-sp-d16 -mtune=cortex-m4 \
+	                   -nostartfiles \
+	                   -Wl,-Ttext-segment=0x10000000 -Wl,-zmax-page-size=512 -Wl,-eprocess_data_entry \
+	                   $0 -o $0.o
+	@cp $0.o $0.orig.o
+	@arm-none-eabi-strip -s -S --strip-unneeded $0.o
+	@arm-none-eabi-objcopy --remove-section .ARM.attributes \
+                           --remove-section .comment \
+                           --remove-section .noinit \
+                           $0.o
+	arm-none-eabi-size $0.o
+)make";
+
+const char *file_header_h7 = R"cpp(
+#include <cstdint>
+
+using adcsample_t = uint16_t;
+constexpr unsigned int SIZE = $0;
+adcsample_t *process_data(adcsample_t *samples, unsigned int size);
+extern "C" void process_data_entry()
+{
+    ((void (*)())process_data)();
+}
+
+constexpr double PI = 3.14159265358979323846L;
+__attribute__((naked))
+auto sin(double x) {
+asm("vmov.f64 r1, r2, d0;"
+    "eor r0, r0;"
+    "svc 1;"
+    "vmov.f64 d0, r1, r2;"
+    "bx lr");
+return 0;
+}
+__attribute__((naked))
+auto cos(double x) {
+asm("vmov.f64 r1, r2, d0;"
+	"mov r0, #1;"
+	"svc 1;"
+	"vmov.f64 d0, r1, r2;"
+	"bx lr");
+return 0;
+}
+__attribute__((naked))
+auto tan(double x) {
+asm("vmov.f64 r1, r2, d0;"
+	"mov r0, #2;"
+	"svc 1;"
+	"vmov.f64 d0, r1, r2;"
+	"bx lr");
+return 0;
+}
+__attribute__((naked))
+auto sqrt(double x) {
+asm("vsqrt.f64 d0, d0; bx lr");
+return 0;
+}
+
+auto readalt() {
+adcsample_t s;
+asm("svc 3; mov %0, r0" : "=&r"(s));
+return s;
+}
+
+// End stmdspgui header code
+
+)cpp";
+const char *file_header_l4 = R"cpp(
+#include <cstdint>
+
+using adcsample_t = uint16_t;
+constexpr unsigned int SIZE = $0;
+adcsample_t *process_data(adcsample_t *samples, unsigned int size);
+extern "C" void process_data_entry()
+{
+    ((void (*)())process_data)();
+}
+
+constexpr float PI = 3.14159265358979L;
+__attribute__((naked))
+auto sin(float x) {
+asm("vmov.f32 r1, s0;"
+    "eor r0, r0;"
+    "svc 1;"
+    "vmov.f32 s0, r1;"
+    "bx lr");
+return 0;
+}
+__attribute__((naked))
+auto cos(float x) {
+asm("vmov.f32 r1, s0;"
+	"mov r0, #1;"
+	"svc 1;"
+	"vmov.f32 s0, r1;"
+	"bx lr");
+return 0;
+}
+__attribute__((naked))
+auto tan(float x) {
+asm("vmov.f32 r1, s0;"
+	"mov r0, #2;"
+	"svc 1;"
+	"vmov.f32 s0, r1;"
+	"bx lr");
+return 0;
+}
+__attribute__((naked))
+auto sqrt(float) {
+asm("vsqrt.f32 s0, s0; bx lr");
+return 0;
+}
+
+auto readalt() {
+adcsample_t s;
+asm("push {r4-r6}; svc 3; mov %0, r0; pop {r4-r6}" : "=&r"(s));
+return s;
+}
+
+// End stmdspgui header code
+
+)cpp";
+
+
+const char *file_content = 
+R"cpp(adcsample_t *process_data(adcsample_t *samples, unsigned int size)
+{
+    return samples;
+}
+)cpp";
+

gui/wxmain_devdata.h

@@ -1,165 +1,16 @@
-static const std::array<wxString, 6> srateValues {
+#ifndef WXMAIN_DEVDATA_H_
-    "8 kS/s",
+#define WXMAIN_DEVDATA_H_
-    "16 kS/s",
-    "20 kS/s",
-    "32 kS/s",
-    "48 kS/s",
-    "96 kS/s"
-};
-static const std::array<unsigned int, 6> srateNums {
-    8000,
-    16000,
-    20000,
-    32000,
-    48000,
-    96000
-};
 
-static const char *makefile_text_h7 = R"make(
+#include <array>
-all:
+#include <wx/string.h>
-	@arm-none-eabi-g++ -x c++ -Os -fno-exceptions -fno-rtti \
-                       -mcpu=cortex-m7 -mthumb -mfloat-abi=hard -mfpu=fpv5-d16 -mtune=cortex-m7 \
-	                   -nostartfiles \
-	                   -Wl,-Ttext-segment=0x00000000 -Wl,-zmax-page-size=512 -Wl,-eprocess_data_entry \
-	                   $0 -o $0.o
-	@cp $0.o $0.orig.o
-	@arm-none-eabi-strip -s -S --strip-unneeded $0.o
-	@arm-none-eabi-objcopy --remove-section .ARM.attributes \
-                           --remove-section .comment \
-                           --remove-section .noinit \
-                           $0.o
-	arm-none-eabi-size $0.o
-)make";
-static const char *makefile_text_l4 = R"make(
-all:
-	@arm-none-eabi-g++ -x c++ -Os -fno-exceptions -fno-rtti \
-	                   -mcpu=cortex-m4 -mthumb -mfloat-abi=hard -mfpu=fpv4-sp-d16 -mtune=cortex-m4 \
-	                   -nostartfiles \
-	                   -Wl,-Ttext-segment=0x10000000 -Wl,-zmax-page-size=512 -Wl,-eprocess_data_entry \
-	                   $0 -o $0.o
-	@cp $0.o $0.orig.o
-	@arm-none-eabi-strip -s -S --strip-unneeded $0.o
-	@arm-none-eabi-objcopy --remove-section .ARM.attributes \
-                           --remove-section .comment \
-                           --remove-section .noinit \
-                           $0.o
-	arm-none-eabi-size $0.o
-)make";
 
-static const char *file_header_h7 = R"cpp(
+extern const std::array<wxString, 6> srateValues;
-#include <cstdint>
+extern const std::array<unsigned int, 6> srateNums;
+extern const char *makefile_text_h7;
+extern const char *makefile_text_l4;
+extern const char *file_header_h7;
+extern const char *file_header_l4;
+extern const char *file_content;
 
-using adcsample_t = uint16_t;
+#endif // WXMAIN_DEVDATA_H_
-constexpr unsigned int SIZE = $0;
-adcsample_t *process_data(adcsample_t *samples, unsigned int size);
-extern "C" void process_data_entry()
-{
-    ((void (*)())process_data)();
-}
-
-constexpr double PI = 3.14159265358979323846L;
-__attribute__((naked))
-auto sin(double x) {
-asm("vmov.f64 r1, r2, d0;"
-    "eor r0, r0;"
-    "svc 1;"
-    "vmov.f64 d0, r1, r2;"
-    "bx lr");
-return 0;
-}
-__attribute__((naked))
-auto cos(double x) {
-asm("vmov.f64 r1, r2, d0;"
-	"mov r0, #1;"
-	"svc 1;"
-	"vmov.f64 d0, r1, r2;"
-	"bx lr");
-return 0;
-}
-__attribute__((naked))
-auto tan(double x) {
-asm("vmov.f64 r1, r2, d0;"
-	"mov r0, #2;"
-	"svc 1;"
-	"vmov.f64 d0, r1, r2;"
-	"bx lr");
-return 0;
-}
-__attribute__((naked))
-auto sqrt(double x) {
-asm("vsqrt.f64 d0, d0; bx lr");
-return 0;
-}
-
-auto readalt() {
-adcsample_t s;
-asm("svc 3; mov %0, r0" : "=&r"(s));
-return s;
-}
-
-// End stmdspgui header code
-
-)cpp";
-static const char *file_header_l4 = R"cpp(
-#include <cstdint>
-
-using adcsample_t = uint16_t;
-constexpr unsigned int SIZE = $0;
-adcsample_t *process_data(adcsample_t *samples, unsigned int size);
-extern "C" void process_data_entry()
-{
-    ((void (*)())process_data)();
-}
-
-constexpr float PI = 3.14159265358979L;
-__attribute__((naked))
-auto sin(float x) {
-asm("vmov.f32 r1, s0;"
-    "eor r0, r0;"
-    "svc 1;"
-    "vmov.f32 s0, r1;"
-    "bx lr");
-return 0;
-}
-__attribute__((naked))
-auto cos(float x) {
-asm("vmov.f32 r1, s0;"
-	"mov r0, #1;"
-	"svc 1;"
-	"vmov.f32 s0, r1;"
-	"bx lr");
-return 0;
-}
-__attribute__((naked))
-auto tan(float x) {
-asm("vmov.f32 r1, s0;"
-	"mov r0, #2;"
-	"svc 1;"
-	"vmov.f32 s0, r1;"
-	"bx lr");
-return 0;
-}
-__attribute__((naked))
-auto sqrt(float) {
-asm("vsqrt.f32 s0, s0; bx lr");
-return 0;
-}
-
-auto readalt() {
-adcsample_t s;
-asm("push {r4-r6}; svc 3; mov %0, r0; pop {r4-r6}" : "=&r"(s));
-return s;
-}
-
-// End stmdspgui header code
-
-)cpp";
-
-
-static const char *file_content = 
-R"cpp(adcsample_t *process_data(adcsample_t *samples, unsigned int size)
-{
-    return samples;
-}
-)cpp";
 

gui/wxmain_mfile.cpp

@@ -1,3 +1,8 @@
+#include "wxmain.hpp"
+#include "wxmain_devdata.h"
+
+#include <wx/menu.h>
+
 void MainFrame::onFileNew(wxCommandEvent&)
 {
     m_open_file_path = "";

gui/wxmain_mrun.cpp

@@ -1,3 +1,10 @@
+#include "wxmain.hpp"
+#include "wxmain_devdata.h"
+#include "wxsiggen.hpp"
+
+#include <wx/menuitem.h>
+#include <wx/textdlg.h>
+
 void MainFrame::onRunConnect(wxCommandEvent& ce)
 {
     auto menuItem = dynamic_cast<wxMenuItem *>(ce.GetEventUserData());
@@ -103,7 +110,7 @@ void MainFrame::onRunEditBSize(wxCommandEvent&)
         if (wxString value = dialog.GetValue(); !value.IsEmpty()) {
             if (unsigned long n; value.ToULong(&n)) {
                 if (n >= 100 && n <= stmdsp::SAMPLES_MAX) {
-                    if (n & 1 == 1)
+                    if ((n & 1) == 1)
                         ++n;
                     m_device->continuous_set_buffer_size(n);
                 } else {
@@ -159,7 +166,7 @@ void MainFrame::onRunGenUpload(wxCommandEvent&)
 
             if (samples.size() <= stmdsp::SAMPLES_MAX * 2) {
                 // DAC buffer must be of even size
-                if (samples.size() & 1 == 1)
+                if ((samples.size() & 1) == 1)
                     samples.push_back(0);
                 m_device->siggen_upload(&samples[0], samples.size());
                 m_status_bar->SetStatusText("Generator ready.");
@@ -168,24 +175,15 @@ void MainFrame::onRunGenUpload(wxCommandEvent&)
                                                              stmdsp::SAMPLES_MAX * 2));
             }
         } else {
-            // Formula
+            extern std::vector<stmdsp::dacsample_t> siggen_formula_parse(const std::string&);
-            m_status_bar->SetStatusText("Sorry, formulas not supported yet.");
+            auto samples = siggen_formula_parse(result.ToStdString());
+            if (samples.size() > 0) {
+                m_device->siggen_upload(&samples[0], samples.size());
+                m_status_bar->SetStatusText("Generator ready.");
+            } else {
+                m_status_bar->SetStatusText("Error: Bad formula.");
+            }
         }
-    //    if (wxString values = dialog.GetValue(); !values.IsEmpty()) {
-    //        if (values[0] == '/') {
-    //            m_wav_clip = new wav::clip(values.Mid(1));
-    //            if (m_wav_clip->valid()) {
-    //                m_status_bar->SetStatusText("Generator ready.");
-    //            } else {
-    //                delete m_wav_clip;
-    //                m_wav_clip = nullptr;
-    //                m_status_bar->SetStatusText("Error: Bad WAV file.");
-    //            }
-    //        } else {
-    //        }
-    //    } else {
-    //        m_status_bar->SetStatusText("Error: No samples given.");
-    //    }
     } else {
         m_status_bar->SetStatusText("Ready.");
     }

gui/wxmain_mrun_genupload.cpp

@@ -0,0 +1,28 @@
+#include "stmdsp.hpp"
+#include "exprtk.hpp"
+#include <string>
+#include <vector>
+
+std::vector<stmdsp::dacsample_t> siggen_formula_parse(const std::string& formulaString)
+{
+    double x = 0;
+
+    exprtk::symbol_table<double> symbol_table;
+    symbol_table.add_variable("x", x);
+    symbol_table.add_constants();
+
+    exprtk::expression<double> expression;
+    expression.register_symbol_table(symbol_table);
+
+    exprtk::parser<double> parser;
+    parser.compile(formulaString, expression);
+
+    std::vector<stmdsp::dacsample_t> samples;
+    for (x = 0; samples.size() < stmdsp::SAMPLES_MAX; x += 1) {
+        auto y = static_cast<stmdsp::dacsample_t>(expression.value());
+        samples.push_back(y);
+    }
+
+    return samples;
+}
+

gui/wxsiggen.cpp

@@ -79,7 +79,9 @@ void SiggenDialog::onSourceChange(wxCommandEvent& ce)
         return;
 
     m_result.Clear();
-    if (int selection = radio->GetSelection(); selection >= 0 && selection < Sources.size()) {
+    if (unsigned int selection = static_cast<unsigned int>(radio->GetSelection());
+        selection < Sources.size())
+    {
         m_instruction->SetLabel(Instructions[selection]);
         m_source_list->Show(selection == 0);
         m_source_math->Show(selection == 1);