linux building

2 files changed, 425 insertions, 0 deletions

diff --git a/src/linux/main_linux.cpp b/src/linux/main_linux.cpp
new file mode 100644
index 0000000..f1fc01d
--- /dev/null
+++ b/src/linux/main_linux.cpp
@@ -0,0 +1,296 @@
+#include "imgui.h"
+#include "imgui_spectrum.h"
+#include "imgui_impl_glfw.h"
+#include "imgui_impl_opengl3.h"
+#include "../utf8.h"
+#include "platform.h"
+#include "mutex.h"
+#include "array.h"
+#include "memory_bucket.h"
+#include "image.h"
+#include "config.h"
+#include <stdio.h>
+#include <stdlib.h>
+#include <errno.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <dirent.h>
+#define GL_SILENCE_DEPRECATION
+#if defined(IMGUI_IMPL_OPENGL_ES2)
+#include <GLES2/gl2.h>
+#endif
+#include <GLFW/glfw3.h> // Will drag system OpenGL headers
+
+void ts_create_gui(int window_w, int window_h);
+void ts_load_images();
+void ts_init();
+
+bool program_running = true;
+
+char config_path[MAX_INPUT_LENGTH];
+static const char* _ts_platform_get_config_file_path(char* buffer) {
+	char *env = getenv("HOME");
+	snprintf(buffer, MAX_INPUT_LENGTH, "%s%s", env, "text-search/imgui.ini");
+	return buffer;
+}
+
+static void glfw_error_callback(int error, const char* description)
+{
+    fprintf(stderr, "GLFW Error %d: %s\n", error, description);
+}
+
+// Main code
+int main(int, char**)
+{
+    glfwSetErrorCallback(glfw_error_callback);
+    if (!glfwInit())
+        return 1;
+
+    // Decide GL+GLSL versions
+#if defined(IMGUI_IMPL_OPENGL_ES2)
+    // GL ES 2.0 + GLSL 100
+    const char* glsl_version = "#version 100";
+    glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 2);
+    glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 0);
+    glfwWindowHint(GLFW_CLIENT_API, GLFW_OPENGL_ES_API);
+#elif defined(__APPLE__)
+    // GL 3.2 + GLSL 150
+    const char* glsl_version = "#version 150";
+    glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 3);
+    glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 2);
+    glfwWindowHint(GLFW_OPENGL_PROFILE, GLFW_OPENGL_CORE_PROFILE);  // 3.2+ only
+    glfwWindowHint(GLFW_OPENGL_FORWARD_COMPAT, GL_TRUE);            // Required on Mac
+#else
+    // GL 3.0 + GLSL 130
+    const char* glsl_version = "#version 130";
+    glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 3);
+    glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 0);
+    //glfwWindowHint(GLFW_OPENGL_PROFILE, GLFW_OPENGL_CORE_PROFILE);  // 3.2+ only
+    //glfwWindowHint(GLFW_OPENGL_FORWARD_COMPAT, GL_TRUE);            // 3.0+ only
+#endif
+
+    // Create window with graphics context
+    GLFWwindow* window = glfwCreateWindow(1280, 720, "Text-Search", nullptr, nullptr);
+    if (window == nullptr)
+        return 1;
+    glfwMakeContextCurrent(window);
+    glfwSwapInterval(1); // Enable vsync
+
+    IMGUI_CHECKVERSION();
+    ImGui::CreateContext();
+    ImGuiIO& io = ImGui::GetIO(); (void)io;
+    io.ConfigFlags |= ImGuiConfigFlags_NavEnableKeyboard;   // Enable Keyboard Controls
+	io.IniFilename = _ts_platform_get_config_file_path(config_path);
+
+    // Setup Platform/Renderer backends
+    ImGui_ImplGlfw_InitForOpenGL(window, true);
+    ImGui_ImplOpenGL3_Init(glsl_version);
+
+    // Setup Dear ImGui style
+    ImGui::Spectrum::StyleColorsSpectrum();
+	//ImGui::Spectrum::LoadFont(18.0f);
+
+	ts_init();
+	ts_load_images();
+	ts_load_config();
+
+    ImVec4 clear_color = ImVec4(0.45f, 0.55f, 0.60f, 1.00f);
+	int display_w, display_h;
+    while (!glfwWindowShouldClose(window))
+    {
+        glfwPollEvents();
+
+        // Start the Dear ImGui frame
+        ImGui_ImplOpenGL3_NewFrame();
+        ImGui_ImplGlfw_NewFrame();
+        ImGui::NewFrame();
+
+		ts_create_gui(display_w, display_h);
+
+        // Rendering
+        ImGui::Render();  
+        glfwGetFramebufferSize(window, &display_w, &display_h);
+        glViewport(0, 0, display_w, display_h);
+        glClearColor(clear_color.x * clear_color.w, clear_color.y * clear_color.w, clear_color.z * clear_color.w, clear_color.w);
+        glClear(GL_COLOR_BUFFER_BIT);
+        ImGui_ImplOpenGL3_RenderDrawData(ImGui::GetDrawData());
+
+        glfwSwapBuffers(window);
+    }
+
+    // Cleanup
+    ImGui_ImplOpenGL3_Shutdown();
+    ImGui_ImplGlfw_Shutdown();
+    ImGui::DestroyContext();
+
+    glfwDestroyWindow(window);
+    glfwTerminate();
+
+    return 0;
+}
+
+bool ts_platform_dir_exists(utf8_int8_t* path) {
+	DIR* dir = opendir(path);
+	if (dir) {
+		/* Directory exists. */
+		closedir(dir);
+		return true;
+	} else if (ENOENT == errno) {
+		return false; // does not exist
+	} else {
+		return false; // error opening dir
+	}
+}
+
+ts_file_content ts_platform_read_file(char *path, const char *mode) {
+	ts_file_content result;
+	result.content = 0;
+	result.content_length = 0;
+	result.file_error = 0;
+	
+	FILE *file = fopen(path, mode);
+	
+	if (!file) 
+	{
+		if (errno == EMFILE)
+			result.file_error = FILE_ERROR_TOO_MANY_OPEN_FILES_PROCESS;
+		else if (errno == ENFILE)
+			result.file_error = FILE_ERROR_TOO_MANY_OPEN_FILES_SYSTEM;
+		else if (errno == EACCES)
+			result.file_error = FILE_ERROR_NO_ACCESS;
+		else if (errno == EPERM)
+			result.file_error = FILE_ERROR_NO_ACCESS;
+		else if (errno == ENOENT)
+			result.file_error = FILE_ERROR_NOT_FOUND;
+		else if (errno == ECONNABORTED)
+			result.file_error = FILE_ERROR_CONNECTION_ABORTED;
+		else if (errno == ECONNREFUSED)
+			result.file_error = FILE_ERROR_CONNECTION_REFUSED;
+		else if (errno == ENETDOWN)
+			result.file_error = FILE_ERROR_NETWORK_DOWN;
+		else if (errno == EREMOTEIO)
+			result.file_error = FILE_ERROR_REMOTE_IO_ERROR;
+		else if (errno == ESTALE)
+			result.file_error = FILE_ERROR_STALE;
+		else
+		{
+			result.file_error = FILE_ERROR_GENERIC;
+		}
+		
+		return result;
+	}
+	
+	fseek(file, 0 , SEEK_END);
+	int length = ftell(file);
+	fseek(file, 0, SEEK_SET);
+	
+	int length_to_alloc = length+1;
+	
+	result.content = malloc(length_to_alloc);
+	if (!result.content) {
+		fclose(file);
+		return result;
+	}
+	
+	memset(result.content, 0, length);
+	int read_result = fread(result.content, 1, length, file);
+	if (read_result == 0 && length != 0)
+	{
+		free(result.content);
+		result.content = 0;
+		return result;
+	}
+	
+	result.content_length = read_result;
+	
+	((char*)result.content)[length] = 0;
+	
+	fclose(file);
+	return result;
+}
+
+void ts_platform_list_files_block(ts_search_result* result, wchar_t* start_dir) {
+
+	utf8_int8_t* search_dir = (utf8_int8_t*)ts_memory_bucket_reserve(&result->memory, MAX_INPUT_LENGTH);
+	if (start_dir == nullptr) {
+		strcpy(search_dir, result->directory_to_search);
+	}
+	else {
+		strcpy(search_dir, (char*)start_dir);
+	}
+
+	// Append wildcard
+	utf8_int8_t* search_dir_fix = (utf8_int8_t*)ts_memory_bucket_reserve(&result->memory, MAX_INPUT_LENGTH);
+    strcpy(search_dir_fix, search_dir);
+    strcat(search_dir_fix, u8"/*");
+	
+	DIR *d;
+	struct dirent *dir;
+	d = opendir(search_dir);
+	if (d) {
+		chdir(search_dir);
+		while ((dir = readdir(d)) != NULL) {
+			if (result->cancel_search) return;
+			chdir(search_dir);
+			
+			if (dir->d_type == DT_DIR)
+			{
+				if ((strcmp(dir->d_name, ".") == 0) || (strcmp(dir->d_name, "..") == 0))
+					continue;
+				
+				utf8_int8_t complete_file_path[MAX_INPUT_LENGTH];
+				strcpy(complete_file_path, search_dir);
+				strcat(complete_file_path, "/");
+				strcat(complete_file_path, dir->d_name);
+				
+				// do recursive search
+				ts_platform_list_files_block(result, (wchar_t*)complete_file_path);
+			}
+			// we handle DT_UNKNOWN for file systems that do not support type lookup.
+			else if (dir->d_type == DT_REG || dir->d_type == DT_UNKNOWN)
+			{
+				char *matched_filter = 0;
+				if (ts_filter_matches(&result->filters, dir->d_name, &matched_filter) == -1) {
+					continue;
+				}
+				(void)matched_filter;
+
+				
+				utf8_int8_t complete_file_path[MAX_INPUT_LENGTH];
+				strcpy(complete_file_path, search_dir);
+				strcat(complete_file_path, "/");
+				strcat(complete_file_path, dir->d_name);
+				
+				ts_found_file* f = (ts_found_file*)ts_memory_bucket_reserve(&result->memory, sizeof(ts_found_file));
+				f->path = (utf8_int8_t*)ts_memory_bucket_reserve(&result->memory, MAX_INPUT_LENGTH);
+				f->match_count = 0;
+				f->error = 0;
+				strcpy(f->path, complete_file_path);
+				
+				ts_mutex_lock(&result->files.mutex);
+				ts_array_push_size(&result->files, &f, sizeof(ts_found_file*));
+				ts_mutex_unlock(&result->files.mutex);
+			}
+		}
+		closedir(d);
+	}
+}
+
+uint64_t ts_platform_get_time(uint64_t compare) {
+	struct timespec tms;
+	if (clock_gettime(CLOCK_PROCESS_CPUTIME_ID,&tms)) {
+		return -1;
+	}
+	long result = 0;
+	result = tms.tv_sec * 1000000;
+	result += tms.tv_nsec/1000;
+	if (tms.tv_nsec % 1000 >= 500) {
+		++result;
+	}
+
+	if (compare != 0) {
+		return result - compare;
+	}
+
+	return result;
+}
diff --git a/src/linux/mutex.cpp b/src/linux/mutex.cpp
new file mode 100644
index 0000000..f59a1eb
--- /dev/null
+++ b/src/linux/mutex.cpp
@@ -0,0 +1,129 @@
+#include "mutex.h"
+
+extern long int syscall (long int __sysno, ...);
+extern int pthread_tryjoin_np(pthread_t ts_thread, void **retval);
+
+ts_thread ts_thread_start(void *(*start_routine) (void *), void *arg)
+{
+	ts_thread result;
+	result.valid = false;
+	
+	pthread_attr_t attr;
+	int attr_init_result = pthread_attr_init(&attr);
+	if (attr_init_result)
+		return result;
+	
+	int start_thread_result = pthread_create(&result.thread, &attr, start_routine, arg);
+	if (start_thread_result)
+	{
+		pthread_attr_destroy(&attr);
+		return result;
+	}
+	
+	result.valid = true;
+	pthread_attr_destroy(&attr);
+	
+	return result;
+}
+
+void ts_thread_detach(ts_thread *ts_thread)
+{
+	if (ts_thread->valid)
+	{
+		pthread_detach(ts_thread->thread);
+	}
+}
+
+void ts_thread_join(ts_thread *ts_thread)
+{
+	if (ts_thread->valid)
+	{
+		void *retval;
+		pthread_join(ts_thread->thread, &retval);
+	}
+}
+
+bool ts_thread_tryjoin(ts_thread *ts_thread)
+{
+	if (ts_thread->valid)
+	{
+		void *retval;
+		bool thread_joined = !pthread_tryjoin_np(ts_thread->thread, &retval);
+		return thread_joined;
+	}
+	return false;
+}
+
+void ts_thread_exit()
+{
+	pthread_exit(0);
+}
+
+void ts_thread_stop(ts_thread *ts_thread)
+{
+	if (ts_thread->valid)
+	{
+		pthread_cancel(ts_thread->thread);
+	}
+}
+
+ts_mutex ts_mutex_create()
+{
+	ts_mutex result;
+	
+	pthread_mutexattr_t attr;
+	pthread_mutexattr_init(&attr);
+	pthread_mutexattr_settype(&attr, PTHREAD_MUTEX_DEFAULT);
+	
+	pthread_mutex_init(&result.mutex, &attr);
+	
+	pthread_mutexattr_destroy(&attr);
+	
+	return result;
+}
+
+ts_mutex ts_mutex_create_recursive()
+{
+	ts_mutex result;
+	
+	pthread_mutexattr_t attr;
+	pthread_mutexattr_init(&attr);
+	pthread_mutexattr_settype(&attr, PTHREAD_MUTEX_RECURSIVE);
+	
+	pthread_mutex_init(&result.mutex, &attr);
+	
+	pthread_mutexattr_destroy(&attr);
+	
+	return result;
+}
+
+void ts_mutex_lock(ts_mutex *ts_mutex)
+{
+	pthread_mutex_lock(&ts_mutex->mutex);
+}
+
+bool ts_mutex_trylock(ts_mutex *ts_mutex)
+{
+	return !pthread_mutex_trylock(&ts_mutex->mutex);
+}
+
+void ts_mutex_unlock(ts_mutex *ts_mutex)
+{
+	pthread_mutex_unlock(&ts_mutex->mutex);
+}
+
+void ts_mutex_destroy(ts_mutex *ts_mutex)
+{
+	ts_mutex_unlock(ts_mutex);
+	pthread_mutex_destroy(&ts_mutex->mutex);
+}
+
+int ts_thread_get_id()
+{
+	return (int)syscall(__NR_gettid);
+}
+
+void ts_thread_sleep(int microseconds)
+{
+	usleep(microseconds);
+}
\ No newline at end of file