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Spectrogram - WASM port (#26)

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* wip in progress

* wip

* done

* fix small window behavior
This commit is contained in:
Georgi Gerganov
2021-02-28 17:03:55 +02:00
committed by GitHub
parent 28e06d5b08
commit 6accc90199
7 changed files with 598 additions and 23 deletions
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47
examples/spectrogram/main.cpp
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@@ -3,6 +3,13 @@
#include "ggwave/ggwave.h"
#include "ggwave-common.h"
#ifdef __EMSCRIPTEN__
#include "build_timestamp.h"
#include "emscripten/emscripten.h"
#else
#define EMSCRIPTEN_KEEPALIVE
#endif
#include <imgui-extra/imgui_impl.h>
#include <SDL.h>
@@ -326,7 +333,30 @@ void mainUpdate(void *) {
g_mainUpdate();
}
// JS interface
extern "C" {
EMSCRIPTEN_KEEPALIVE
int do_init() {
return g_doInit();
}
EMSCRIPTEN_KEEPALIVE
void set_window_size(int sizeX, int sizeY) {
g_setWindowSize(sizeX, sizeY);
}
}
int main(int argc, char** argv) {
#ifdef __EMSCRIPTEN__
printf("Build time: %s\n", BUILD_TIMESTAMP);
printf("Press the Init button to start\n");
if (argv[1]) {
GGWave_setDefaultCaptureDeviceName(argv[1]);
}
#endif
auto argm = parseCmdArguments(argc, argv);
int captureId = argm["c"].empty() ? 0 : std::stoi(argm["c"]);
int playbackId = argm["p"].empty() ? 0 : std::stoi(argm["p"]);
@@ -338,13 +368,19 @@ int main(int argc, char** argv) {
ImGui_PreInit();
int windowX = 1920;
int windowX = 1600;
int windowY = 1200;
const char * windowTitle = "spectrogram";
#ifdef __EMSCRIPTEN__
SDL_Renderer * renderer;
SDL_Window * window;
SDL_CreateWindowAndRenderer(windowX, windowY, SDL_WINDOW_OPENGL, &window, &renderer);
#else
SDL_WindowFlags window_flags = (SDL_WindowFlags)(SDL_WINDOW_OPENGL | SDL_WINDOW_RESIZABLE | SDL_WINDOW_ALLOW_HIGHDPI);
SDL_Window * window = SDL_CreateWindow(windowTitle, SDL_WINDOWPOS_CENTERED, SDL_WINDOWPOS_CENTERED, windowX, windowY, window_flags);
#endif
void * gl_context = SDL_GL_CreateContext(window);
@@ -403,6 +439,7 @@ int main(int argc, char** argv) {
ImGuiWindowFlags_NoTitleBar |
ImGuiWindowFlags_NoScrollbar |
ImGuiWindowFlags_NoResize |
ImGuiWindowFlags_NoScrollWithMouse |
ImGuiWindowFlags_NoSavedSettings);
auto & style = ImGui::GetStyle();
@@ -476,8 +513,8 @@ int main(int argc, char** argv) {
if (g_showControls) {
ImGui::SetNextWindowFocus();
ImGui::SetNextWindowPos({ displaySize.x - 400 - 20, 20 });
ImGui::SetNextWindowSize({ 400, 180 });
ImGui::SetNextWindowPos({ std::max(20.0f, displaySize.x - 400.0f - 20.0f), 20.0f });
ImGui::SetNextWindowSize({ std::min(displaySize.x - 40.0f, 400.0f), 180.0f });
ImGui::Begin("Controls", &g_showControls);
ImGui::Text("Press 'c' to hide/show this window");
{
@@ -516,6 +553,9 @@ int main(int argc, char** argv) {
return true;
};
#ifdef __EMSCRIPTEN__
emscripten_set_main_loop_arg(mainUpdate, NULL, 0, true);
#else
if (g_doInit() == false) {
printf("Error: failed to initialize audio\n");
return -2;
@@ -535,6 +575,7 @@ int main(int argc, char** argv) {
SDL_DestroyWindow(window);
SDL_CloseAudio();
SDL_Quit();
#endif
return 0;
}