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Diffstat (limited to 'examples/web/core/core_loading_thread.c')
| -rw-r--r-- | examples/web/core/core_loading_thread.c | 177 |
1 files changed, 0 insertions, 177 deletions
diff --git a/examples/web/core/core_loading_thread.c b/examples/web/core/core_loading_thread.c deleted file mode 100644 index 75db4ea..0000000 --- a/examples/web/core/core_loading_thread.c +++ /dev/null @@ -1,177 +0,0 @@ -/******************************************************************************************* -* -* raylib example - loading thread -* -* NOTE: This example requires linking with pthreads library, -* on MinGW, it can be accomplished passing -static parameter to compiler -* -* This example has been created using raylib 2.5 (www.raylib.com) -* raylib is licensed under an unmodified zlib/libpng license (View raylib.h for details) -* -* Copyright (c) 2014-2019 Ramon Santamaria (@raysan5) -* -********************************************************************************************/ - -#include "raylib.h" - -#include "pthread.h" // POSIX style threads management - -#include <time.h> // Required for: clock() - -#if defined(PLATFORM_WEB) - #include <emscripten/emscripten.h> -#endif - -// Using C11 atomics for synchronization -// NOTE: A plain bool (or any plain data type for that matter) can't be used for inter-thread synchronization -static bool dataLoaded = false; // Data Loaded completion indicator -static void *LoadDataThread(void *arg); // Loading data thread function declaration - -static int dataProgress = 0; // Data progress accumulator - -// NOTE: On PLATFORM_WEB, if timeCounter is a local variable while() condition is never true... weird... -static int timeCounter = 0; // Time counted in ms - -//---------------------------------------------------------------------------------- -// Global Variables Definition -//---------------------------------------------------------------------------------- -const int screenWidth = 800; -const int screenHeight = 450; - -// NOTE: Textures MUST be loaded after Window initialization (OpenGL context is required) - -pthread_t threadId; // Loading data thread id - -enum { STATE_WAITING, STATE_LOADING, STATE_FINISHED } state = STATE_WAITING; -int framesCounter = 0; - -//---------------------------------------------------------------------------------- -// Module Functions Declaration -//---------------------------------------------------------------------------------- -void UpdateDrawFrame(void); // Update and Draw one frame - -//---------------------------------------------------------------------------------- -// Program Main Entry Point -//---------------------------------------------------------------------------------- -int main(void) -{ - // Initialization - //-------------------------------------------------------------------------------------- - InitWindow(screenWidth, screenHeight, "raylib [core] example - loading thread"); - -#if defined(PLATFORM_WEB) - emscripten_set_main_loop(UpdateDrawFrame, 60, 1); -#else - SetTargetFPS(60); // Set our game to run at 60 frames-per-second - //-------------------------------------------------------------------------------------- - - // Main game loop - while (!WindowShouldClose()) // Detect window close button or ESC key - { - UpdateDrawFrame(); - } -#endif - - // De-Initialization - //-------------------------------------------------------------------------------------- - CloseWindow(); // Close window and OpenGL context - //-------------------------------------------------------------------------------------- - - return 0; -} - -//---------------------------------------------------------------------------------- -// Module Functions Definition -//---------------------------------------------------------------------------------- -void UpdateDrawFrame(void) -{ - // Update - //---------------------------------------------------------------------------------- - switch (state) - { - case STATE_WAITING: - { - if (IsKeyPressed(KEY_ENTER)) - { - int error = pthread_create(&threadId, NULL, &LoadDataThread, NULL); - if (error != 0) TraceLog(LOG_ERROR, "Error creating loading thread"); - else TraceLog(LOG_INFO, "Loading thread initialized successfully"); - - state = STATE_LOADING; - } - } break; - case STATE_LOADING: - { - framesCounter++; - if (dataLoaded) - { - framesCounter = 0; - state = STATE_FINISHED; - } - } break; - case STATE_FINISHED: - { - if (IsKeyPressed(KEY_ENTER)) - { - // Reset everything to launch again - dataLoaded = false; - dataProgress = 0; - state = STATE_WAITING; - } - } break; - default: break; - } - //---------------------------------------------------------------------------------- - - // Draw - //---------------------------------------------------------------------------------- - BeginDrawing(); - - ClearBackground(RAYWHITE); - - switch (state) - { - case STATE_WAITING: DrawText("PRESS ENTER to START LOADING DATA", 150, 170, 20, DARKGRAY); break; - case STATE_LOADING: - { - DrawRectangle(150, 200, dataProgress, 60, SKYBLUE); - if ((framesCounter/15)%2) DrawText("LOADING DATA...", 240, 210, 40, DARKBLUE); - - } break; - case STATE_FINISHED: - { - DrawRectangle(150, 200, 500, 60, LIME); - DrawText("DATA LOADED!", 250, 210, 40, GREEN); - - } break; - default: break; - } - - DrawRectangleLines(150, 200, 500, 60, DARKGRAY); - - EndDrawing(); - //---------------------------------------------------------------------------------- -} - - -// Loading data thread function definition -static void *LoadDataThread(void *arg) -{ - clock_t prevTime = clock(); // Previous time - - // We simulate data loading with a time counter for 5 seconds - while (timeCounter < 5000) - { - clock_t currentTime = clock() - prevTime; - timeCounter = currentTime*1000/CLOCKS_PER_SEC; - - // We accumulate time over a global variable to be used in - // main thread as a progress bar - dataProgress = timeCounter/10; - } - - // When data has finished loading, we set global variable - dataLoaded = true; - - return NULL; -}
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