328 lines
8.1 KiB
C++
328 lines
8.1 KiB
C++
#include "PrimaryGLContext.h"
|
|
|
|
#include "wx/wxprec.h"
|
|
|
|
#ifndef WX_PRECOMP
|
|
#include "wx/wx.h"
|
|
#endif
|
|
|
|
#if !wxUSE_GLCANVAS
|
|
#error "OpenGL required: set wxUSE_GLCANVAS to 1 and rebuild the library"
|
|
#endif
|
|
|
|
#include "CubicSDR.h"
|
|
#include "CubicSDRDefs.h"
|
|
#include "AppFrame.h"
|
|
#include <algorithm>
|
|
|
|
GLFont PrimaryGLContext::fonts[GLFONT_MAX];
|
|
|
|
wxString PrimaryGLContext::glGetwxString(GLenum name) {
|
|
const GLubyte *v = glGetString(name);
|
|
if (v == 0) {
|
|
// The error is not important. It is GL_INVALID_ENUM.
|
|
// We just want to clear the error stack.
|
|
glGetError();
|
|
|
|
return wxString();
|
|
}
|
|
|
|
return wxString((const char*) v);
|
|
}
|
|
|
|
void PrimaryGLContext::CheckGLError() {
|
|
GLenum errLast = GL_NO_ERROR;
|
|
|
|
for (;;) {
|
|
GLenum err = glGetError();
|
|
if (err == GL_NO_ERROR)
|
|
return;
|
|
|
|
if (err == errLast) {
|
|
std::cout << "OpenGL error state couldn't be reset." << std::endl;
|
|
return;
|
|
}
|
|
|
|
errLast = err;
|
|
|
|
std::cout << "OpenGL Error " << err << std::endl;
|
|
}
|
|
}
|
|
|
|
PrimaryGLContext::PrimaryGLContext(wxGLCanvas *canvas, wxGLContext *sharedContext) :
|
|
wxGLContext(canvas, sharedContext) {
|
|
//#ifndef __linux__
|
|
// SetCurrent(*canvas);
|
|
// // Pre-load fonts
|
|
// for (int i = 0; i < GLFONT_MAX; i++) {
|
|
// getFont((GLFontSize) i);
|
|
// }
|
|
// CheckGLError();
|
|
//#endif
|
|
}
|
|
|
|
GLFont &PrimaryGLContext::getFont(GLFontSize esize) {
|
|
if (!fonts[esize].isLoaded()) {
|
|
|
|
std::string fontName;
|
|
switch (esize) {
|
|
case GLFONT_SIZE12:
|
|
fontName = "vera_sans_mono12.fnt";
|
|
break;
|
|
case GLFONT_SIZE16:
|
|
fontName = "vera_sans_mono16.fnt";
|
|
break;
|
|
case GLFONT_SIZE18:
|
|
fontName = "vera_sans_mono18.fnt";
|
|
break;
|
|
case GLFONT_SIZE24:
|
|
fontName = "vera_sans_mono24.fnt";
|
|
break;
|
|
case GLFONT_SIZE32:
|
|
fontName = "vera_sans_mono32.fnt";
|
|
break;
|
|
case GLFONT_SIZE48:
|
|
fontName = "vera_sans_mono48.fnt";
|
|
break;
|
|
default:
|
|
fontName = "vera_sans_mono12.fnt";
|
|
break;
|
|
}
|
|
|
|
fonts[esize].loadFont(fontName);
|
|
}
|
|
|
|
return fonts[esize];
|
|
}
|
|
|
|
void PrimaryGLContext::DrawDemodInfo(DemodulatorInstance *demod, float r, float g, float b, long long center_freq, long long srate) {
|
|
if (!demod) {
|
|
return;
|
|
}
|
|
if (!srate) {
|
|
srate = wxGetApp().getSampleRate();
|
|
}
|
|
|
|
GLint vp[4];
|
|
glGetIntegerv( GL_VIEWPORT, vp);
|
|
|
|
float viewHeight = (float) vp[3];
|
|
float viewWidth = (float) vp[2];
|
|
|
|
if (center_freq == -1) {
|
|
center_freq = wxGetApp().getFrequency();
|
|
}
|
|
|
|
float uxPos = (float) (demod->getFrequency() - (center_freq - srate / 2)) / (float) srate;
|
|
uxPos = (uxPos - 0.5) * 2.0;
|
|
|
|
glDisable(GL_TEXTURE_2D);
|
|
|
|
glEnable(GL_BLEND);
|
|
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
|
|
glColor4f(r, g, b, 0.6);
|
|
|
|
float ofs = ((float) demod->getBandwidth()) / (float) srate;
|
|
|
|
|
|
float labelHeight = 20.0 / viewHeight;
|
|
float hPos = -1.0 + labelHeight;
|
|
|
|
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
|
|
|
|
glColor4f(0, 0, 0, 0.35);
|
|
glBegin(GL_QUADS);
|
|
glVertex3f(uxPos - ofs, hPos + labelHeight, 0.0);
|
|
glVertex3f(uxPos - ofs, -1.0, 0.0);
|
|
|
|
glVertex3f(uxPos + ofs, -1.0, 0.0);
|
|
glVertex3f(uxPos + ofs, hPos + labelHeight, 0.0);
|
|
glEnd();
|
|
|
|
glBlendFunc(GL_SRC_ALPHA, GL_ONE);
|
|
|
|
glColor4f(r, g, b, 0.2);
|
|
glBegin(GL_QUADS);
|
|
glVertex3f(uxPos - ofs, 1.0, 0.0);
|
|
glVertex3f(uxPos - ofs, -1.0, 0.0);
|
|
|
|
glVertex3f(uxPos + ofs, -1.0, 0.0);
|
|
glVertex3f(uxPos + ofs, 1.0, 0.0);
|
|
glEnd();
|
|
|
|
|
|
|
|
if (ofs * 2.0 < 16.0 / viewWidth) {
|
|
ofs = 16.0 / viewWidth;
|
|
|
|
glColor4f(r, g, b, 0.2);
|
|
glBegin(GL_QUADS);
|
|
glVertex3f(uxPos - ofs, hPos + labelHeight, 0.0);
|
|
glVertex3f(uxPos - ofs, -1.0, 0.0);
|
|
|
|
glVertex3f(uxPos + ofs, -1.0, 0.0);
|
|
glVertex3f(uxPos + ofs, hPos + labelHeight, 0.0);
|
|
glEnd();
|
|
}
|
|
|
|
glColor4f(1.0, 1.0, 1.0, 0.8);
|
|
|
|
getFont(PrimaryGLContext::GLFONT_SIZE16).drawString(demod->getLabel(), uxPos, hPos, 16, GLFont::GLFONT_ALIGN_CENTER, GLFont::GLFONT_ALIGN_CENTER);
|
|
|
|
glDisable(GL_BLEND);
|
|
|
|
}
|
|
|
|
void PrimaryGLContext::DrawDemod(DemodulatorInstance *demod, float r, float g, float b, long long center_freq, long long srate) {
|
|
if (!demod) {
|
|
return;
|
|
}
|
|
if (!srate) {
|
|
srate = wxGetApp().getSampleRate();
|
|
}
|
|
|
|
if (center_freq == -1) {
|
|
center_freq = wxGetApp().getFrequency();
|
|
}
|
|
|
|
float uxPos = (float) (demod->getFrequency() - (center_freq - srate / 2)) / (float) srate;
|
|
|
|
glDisable(GL_TEXTURE_2D);
|
|
|
|
glEnable(GL_BLEND);
|
|
glBlendFunc(GL_SRC_ALPHA, GL_ONE);
|
|
glColor4f(r, g, b, 0.6);
|
|
|
|
glBegin(GL_LINES);
|
|
glVertex3f((uxPos - 0.5) * 2.0, 1.0, 0.0);
|
|
glVertex3f((uxPos - 0.5) * 2.0, -1.0, 0.0);
|
|
|
|
float ofs = ((float) demod->getBandwidth()) / (float) srate;
|
|
|
|
glVertex3f((uxPos - 0.5) * 2.0 - ofs, 1.0, 0.0);
|
|
glVertex3f((uxPos - 0.5) * 2.0 - ofs, -1.0, 0.0);
|
|
|
|
glVertex3f((uxPos - 0.5) * 2.0 + ofs, 1.0, 0.0);
|
|
glVertex3f((uxPos - 0.5) * 2.0 + ofs, -1.0, 0.0);
|
|
|
|
glEnd();
|
|
|
|
glBlendFunc(GL_SRC_ALPHA, GL_ONE);
|
|
glColor4f(r, g, b, 0.2);
|
|
glBegin(GL_QUADS);
|
|
glVertex3f((uxPos - 0.5) * 2.0 - ofs, 1.0, 0.0);
|
|
glVertex3f((uxPos - 0.5) * 2.0 - ofs, -1.0, 0.0);
|
|
|
|
glVertex3f((uxPos - 0.5) * 2.0 + ofs, -1.0, 0.0);
|
|
glVertex3f((uxPos - 0.5) * 2.0 + ofs, 1.0, 0.0);
|
|
glEnd();
|
|
|
|
GLint vp[4];
|
|
glGetIntegerv( GL_VIEWPORT, vp);
|
|
|
|
float viewHeight = (float) vp[3];
|
|
float viewWidth = (float) vp[2];
|
|
|
|
float labelHeight = 20.0 / viewHeight;
|
|
float xOfs = (2.0 / viewWidth);
|
|
float yOfs = (2.0 / viewHeight);
|
|
float hPos = labelHeight;
|
|
|
|
glDisable(GL_BLEND);
|
|
|
|
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
|
|
glDisable(GL_COLOR_MATERIAL);
|
|
|
|
glEnable(GL_BLEND);
|
|
|
|
std::string demodStr;
|
|
GLFont::Align demodAlign;
|
|
|
|
switch (demod->getDemodulatorType()) {
|
|
case DEMOD_TYPE_FM:
|
|
demodStr = "FM";
|
|
demodAlign = GLFont::GLFONT_ALIGN_CENTER;
|
|
break;
|
|
case DEMOD_TYPE_AM:
|
|
demodStr = "AM";
|
|
demodAlign = GLFont::GLFONT_ALIGN_CENTER;
|
|
break;
|
|
case DEMOD_TYPE_LSB:
|
|
demodStr = "LSB";
|
|
demodAlign = GLFont::GLFONT_ALIGN_RIGHT;
|
|
break;
|
|
case DEMOD_TYPE_USB:
|
|
demodStr = "USB";
|
|
demodAlign = GLFont::GLFONT_ALIGN_LEFT;
|
|
break;
|
|
}
|
|
|
|
glColor3f(0, 0, 0);
|
|
getFont(PrimaryGLContext::GLFONT_SIZE16).drawString(demodStr, 2.0 * (uxPos - 0.5) + xOfs, -1.0 + hPos - yOfs, 16, demodAlign,
|
|
GLFont::GLFONT_ALIGN_CENTER);
|
|
glColor3f(0.8, 0.8, 0.8);
|
|
getFont(PrimaryGLContext::GLFONT_SIZE16).drawString(demodStr, 2.0 * (uxPos - 0.5), -1.0 + hPos, 16, demodAlign, GLFont::GLFONT_ALIGN_CENTER);
|
|
|
|
glDisable(GL_BLEND);
|
|
|
|
}
|
|
|
|
void PrimaryGLContext::DrawFreqSelector(float uxPos, float r, float g, float b, float w, long long center_freq, long long srate) {
|
|
DemodulatorInstance *demod = wxGetApp().getDemodMgr().getLastActiveDemodulator();
|
|
|
|
long long bw = 0;
|
|
|
|
if (!demod) {
|
|
bw = wxGetApp().getDemodMgr().getLastBandwidth();
|
|
} else {
|
|
bw = demod->getBandwidth();
|
|
}
|
|
|
|
if (!srate) {
|
|
srate = wxGetApp().getSampleRate();
|
|
}
|
|
|
|
glDisable(GL_TEXTURE_2D);
|
|
|
|
glEnable(GL_BLEND);
|
|
glBlendFunc(GL_SRC_ALPHA, GL_ONE);
|
|
glColor4f(r, g, b, 0.6);
|
|
|
|
glBegin(GL_LINES);
|
|
glVertex3f((uxPos - 0.5) * 2.0, 1.0, 0.0);
|
|
glVertex3f((uxPos - 0.5) * 2.0, -1.0, 0.0);
|
|
|
|
float ofs;
|
|
|
|
if (w) {
|
|
ofs = w;
|
|
} else {
|
|
ofs = ((float) bw) / (float) srate;
|
|
}
|
|
|
|
glVertex3f((uxPos - 0.5) * 2.0 - ofs, 1.0, 0.0);
|
|
glVertex3f((uxPos - 0.5) * 2.0 - ofs, -1.0, 0.0);
|
|
|
|
glVertex3f((uxPos - 0.5) * 2.0 + ofs, 1.0, 0.0);
|
|
glVertex3f((uxPos - 0.5) * 2.0 + ofs, -1.0, 0.0);
|
|
|
|
glEnd();
|
|
glDisable(GL_BLEND);
|
|
|
|
}
|
|
|
|
void PrimaryGLContext::BeginDraw(float r, float g, float b) {
|
|
glClearColor(r,g,b, 1);
|
|
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
|
|
|
|
glMatrixMode(GL_MODELVIEW);
|
|
glLoadIdentity();
|
|
}
|
|
|
|
void PrimaryGLContext::EndDraw() {
|
|
glFlush();
|
|
|
|
CheckGLError();
|
|
}
|
|
|