comicsansg/CubicSDR
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Waterfall now being displayed 2048x512

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Uses indexed color scheme, FFT image is byte array
This commit is contained in:
Charles J. Cliffe 2014-11-11 20:25:16 -05:00
parent fe2e56231d
commit 86dadb8f2c
5 changed files with 116 additions and 87 deletions
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16
src/AppFrame.cpp
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@ -66,13 +66,6 @@ AppFrame::AppFrame() :
}
AppFrame::~AppFrame() {
delete t_SDR;
// delete t_IQBuffer;
delete m_pQueue;
}
void AppFrame::OnClose(wxCommandEvent& WXUNUSED(event)) {
{
wxCriticalSectionLocker enter(m_pThreadCS);
if (t_SDR) {
@ -94,6 +87,15 @@ void AppFrame::OnClose(wxCommandEvent& WXUNUSED(event)) {
}
}
}
delete t_SDR;
// delete t_IQBuffer;
delete m_pQueue;
}
void AppFrame::OnClose(wxCommandEvent& WXUNUSED(event)) {
// true is to force the frame to close
Close(true);
}

2
src/CubicSDRDefs.h
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@ -2,7 +2,7 @@
#define BUF_SIZE (16 * 32 * 256)
#define SRATE 2500000
#define FFT_SIZE 4096
#define FFT_SIZE 2048
#define DEFAULT_FREQ 107500000

45
src/Gradient.h
View File

@ -21,21 +21,34 @@ public:
void addColor(GradientColor c) {
colors.push_back(c);
}
void generate(std::vector<unsigned char> *out, unsigned int len) {
std::vector<float> &getRed() {
return r_val;
}
std::vector<float> &getGreen() {
return g_val;
}
std::vector<float> &getBlue() {
return b_val;
}
void generate(unsigned int len) {
int chunk_size = len/(colors.size()-1);
out->resize(len*3);
int p = 0;
r_val.resize(len);
g_val.resize(len);
b_val.resize(len);
for (unsigned int j = 0, jMax = colors.size()-1; j < jMax; j++) {
if (chunk_size*3 < len && j == jMax-1) {
chunk_size += len-chunk_size*3;
if (chunk_size*(jMax+1) < len && j == jMax-1) {
chunk_size += len-chunk_size*(jMax+1);
}
for (unsigned int i = 0; i < chunk_size; i++) {
float idx = (float)(i+1)/(float)chunk_size;
float idx = (float)(i)/(float)chunk_size;
float r1 = colors[j].r;
float g1 = colors[j].g;
@ -49,9 +62,16 @@ public:
float g = g1 + (g2-g1) * idx;
float b = b1 + (b2-b1) * idx;
(*out)[p*3] = (unsigned char)(r*255.0);
(*out)[p*3+1] = (unsigned char)(g*255.0);
(*out)[p*3+2] = (unsigned char)(b*255.0);
if (r<0.0) r = 0.0;
if (r>1.0) r = 1.0;
if (g<0.0) g = 0.0;
if (g>1.0) g = 1.0;
if (b<0.0) b = 0.0;
if (b>1.0) b = 1.0;
r_val[p] = r;
g_val[p] = g;
b_val[p] = b;
p++;
}
@ -63,4 +83,7 @@ public:
}
private:
std::vector<GradientColor> colors;
};
std::vector<float> r_val;
std::vector<float> g_val;
std::vector<float> b_val;
};

126
src/PrimaryGLContext.cpp
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@ -59,17 +59,57 @@ PrimaryGLContext::PrimaryGLContext(wxGLCanvas *canvas) :
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
glGenTextures(1, &waterfall);
glEnable(GL_TEXTURE_2D);
glBindTexture(GL_TEXTURE_2D, waterfall);
glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
// glTexImage2D(GL_TEXTURE_2D,0,GL_INTENSITY,FFT_SIZE,NUM_WATERFALL_LINES,0,GL_COLOR_INDEX,GL_UNSIGNED_BYTE,(GLvoid *)waterfall_tex);
float clr[16] = { 255, 0, 0, 0, 255, 0, 0, 0, 255, 255, 255, 255 };
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_DECAL);
grad.addColor(GradientColor(0, 0, 0));
grad.addColor(GradientColor(0, 0, 1.0));
grad.addColor(GradientColor(0, 1.0, 0));
grad.addColor(GradientColor(1.0, 1.0, 0));
grad.addColor(GradientColor(1.0, 0.2, 0.0));
grad.generate(256);
// glTexImage2D(GL_TEXTURE_2D,0,GL_INTENSITY,FFT_SIZE,NUM_WATERFALL_LINES,0,GL_COLOR_INDEX,GL_UNSIGNED_BYTE,(GLvoid *)waterfall_tex);
unsigned char rmap[256];
unsigned char gmap[256];
unsigned char bmap[256];
glPixelTransferi(GL_MAP_COLOR, GL_TRUE);
glPixelMapfv(GL_PIXEL_MAP_I_TO_R, 256, &(grad.getRed())[0]);
glPixelMapfv(GL_PIXEL_MAP_I_TO_G, 256, &(grad.getGreen())[0]);
glPixelMapfv(GL_PIXEL_MAP_I_TO_B, 256, &(grad.getBlue())[0]);
CheckGLError();
}
void PrimaryGLContext::Plot(std::vector<float> &points, std::vector<float> &points2, GLuint tex) {
void PrimaryGLContext::Plot(std::vector<float> &points, std::vector<float> &points2, unsigned char *waterfall_tex) {
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glMatrixMode(GL_MODELVIEW);
glLoadIdentity();
glBindTexture(GL_TEXTURE_2D, waterfall);
// glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, FFT_SIZE, NUM_WATERFALL_LINES, 0, GL_LUMINANCE, GL_UNSIGNED_BYTE, waterfall_tex);
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, FFT_SIZE, NUM_WATERFALL_LINES, 0, GL_COLOR_INDEX, GL_UNSIGNED_BYTE, (GLvoid *) waterfall_tex);
// glEnable(GL_LINE_SMOOTH);
glDisable(GL_TEXTURE_2D);
glColor3f(1.0,1.0,1.0);
if (points.size()) {
glPushMatrix();
glTranslatef(-1.0f, -0.9f, 0.0f);
@ -91,21 +131,21 @@ void PrimaryGLContext::Plot(std::vector<float> &points, std::vector<float> &poin
glDisableClientState(GL_VERTEX_ARRAY);
glPopMatrix();
}
glEnable(GL_TEXTURE_2D);
// glEnable(GL_COLOR_TABLE);
glBindTexture(GL_TEXTURE_2D, tex);
glBindTexture(GL_TEXTURE_2D, waterfall);
glBegin(GL_QUADS);
glTexCoord2f(0.0,0.0);
glVertex3f(-0.8,-1.0,0.0);
glTexCoord2f(1.0,0.0);
glVertex3f(1.0,-1.0,0.0);
glTexCoord2f(1.0,1.0);
glVertex3f(1.0,1.0,0.0);
glTexCoord2f(0.0,1.0);
glVertex3f(-1.0,1.0,0.0);
glTexCoord2f(0.0, 0.0);
glVertex3f(-1.0, -1.0, 0.0);
glTexCoord2f(1.0, 0.0);
glVertex3f(1.0, -1.0, 0.0);
glTexCoord2f(1.0, 1.0);
glVertex3f(1.0, 1.0, 0.0);
glTexCoord2f(0.0, 1.0);
glVertex3f(-1.0, 1.0, 0.0);
glEnd();
glFlush();
CheckGLError();
@ -116,13 +156,10 @@ EVT_KEY_DOWN(TestGLCanvas::OnKeyDown)
EVT_IDLE(TestGLCanvas::OnIdle)
wxEND_EVENT_TABLE()
TestGLCanvas::TestGLCanvas(wxWindow *parent, int *attribList) :
wxGLCanvas(parent, wxID_ANY, attribList, wxDefaultPosition, wxDefaultSize,
wxFULL_REPAINT_ON_RESIZE), parent(parent) {
int in_block_size = BUF_SIZE / 2;
int out_block_size = FFT_SIZE;
@ -134,40 +171,6 @@ TestGLCanvas::TestGLCanvas(wxWindow *parent, int *attribList) :
fft_ceil_ma = fft_ceil_maa = 1.0;
grad.addColor(GradientColor(0,0.5,1.0));
grad.addColor(GradientColor(1.0,0,0));
grad.addColor(GradientColor(0,1.0,1.0));
grad.generate(&color_map,256);
glGenTextures(1, &waterfall);
std::cout << waterfall << std::endl;
std::cout << waterfall << std::endl;
std::cout << waterfall << std::endl;
std::cout << waterfall << std::endl;
// for (int i = 0; i < c.size()/3; i++) {
// std::cout << i << ": r[" << (int)c[i*3] << "] g[" << (int)c[i*3+1] << "] b[" << (int)c[i*3+2] << "] " << std::endl;
// }
glEnable(GL_TEXTURE_2D);
glBindTexture(GL_TEXTURE_2D,waterfall);
glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
// glTexImage2D(GL_TEXTURE_2D,0,GL_INTENSITY,FFT_SIZE,NUM_WATERFALL_LINES,0,GL_COLOR_INDEX,GL_UNSIGNED_BYTE,(GLvoid *)waterfall_tex);
float clr[16] = { 255, 0, 0, 0,
0, 255, 0, 0,
0, 0, 255, 0,
255, 255, 255, 0 };
glTexImage2D(GL_TEXTURE_2D,0,GL_RGBA,2,2,0,GL_RGBA,GL_UNSIGNED_BYTE,clr);
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP);
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
// glColorTable(GL_TEXTURE_2D,GL_RGB8,256,GL_RGB,GL_UNSIGNED_BYTE,&color_map[0]);
}
TestGLCanvas::~TestGLCanvas() {
@ -181,8 +184,7 @@ void TestGLCanvas::OnPaint(wxPaintEvent& WXUNUSED(event)) {
PrimaryGLContext& canvas = wxGetApp().GetContext(this);
glViewport(0, 0, ClientSize.x, ClientSize.y);
canvas.Plot(spectrum_points, test_demod.waveform_points, waterfall);
canvas.Plot(spectrum_points, test_demod.waveform_points, waterfall_tex);
SwapBuffers();
}
@ -279,17 +281,19 @@ void TestGLCanvas::setData(std::vector<signed char> *data) {
// fftw_execute(plan[1]);
memmove(waterfall_tex+NUM_WATERFALL_LINES,waterfall_tex,(NUM_WATERFALL_LINES-1)*FFT_SIZE);
for (int i = 0, iMax = FFT_SIZE; i < iMax; i++) {
spectrum_points[i * 2 + 1] = log10(fft_result_maa[i]) / log10(fft_ceil_maa);
// spectrum_points[i * 2 + 1] = (fft_result_maa[i]) / (fft_ceil_maa);
float v = ((float) i / (float) iMax);
spectrum_points[i * 2] = v;
waterfall_tex[i] = (unsigned char)(v*255.0);
}
memmove(waterfall_tex + FFT_SIZE, waterfall_tex, (NUM_WATERFALL_LINES - 1) * FFT_SIZE);
for (int i = 0, iMax = FFT_SIZE; i < iMax; i++) {
float v = log10(fft_result_maa[i]) / log10(fft_ceil_maa);
float wv = v;
if (wv<0.0) wv = 0.0;
if (wv>1.0) wv = 1.0;
waterfall_tex[i] = (unsigned char) floor(wv * 255.0);
spectrum_points[i * 2] = ((float) i / (float) iMax);
spectrum_points[i * 2 + 1] = v;
}
test_demod.writeBuffer(data);
}

14
src/PrimaryGLContext.h
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@ -12,15 +12,19 @@
#include "Gradient.h"
#define NUM_WATERFALL_LINES 256
#define NUM_WATERFALL_LINES 512
class PrimaryGLContext: public wxGLContext {
public:
PrimaryGLContext(wxGLCanvas *canvas);
void Plot(std::vector<float> &points, std::vector<float> &points2, GLuint tex);
void Plot(std::vector<float> &points, std::vector<float> &points2, unsigned char *waterfall_tex);
private:
Gradient grad;
GLuint waterfall;
};
class TestGLCanvas: public wxGLCanvas {
@ -48,14 +52,10 @@ private:
std::vector<float> fft_result_ma;
std::vector<float> fft_result_maa;
Gradient grad;
std::vector<unsigned char> color_map;
unsigned char waterfall_tex[FFT_SIZE * NUM_WATERFALL_LINES];
GLuint waterfall;
Demodulator test_demod;
wxDECLARE_EVENT_TABLE();
};