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Added multiple windows to threads test.
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18a5aba8f1
commit
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@ -33,25 +33,36 @@
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#include <stdio.h>
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#include <stdlib.h>
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#include <math.h>
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#include <assert.h>
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#include "tinycthread.h"
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typedef struct
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{
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GLFWwindow window;
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const char* title;
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float r, g, b;
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thrd_t ID;
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} Thread;
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static volatile GLboolean running = GL_TRUE;
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static int thread_start(void* data)
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{
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GLFWwindow window = (GLFWwindow) data;
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const Thread* thread = (const Thread*) data;
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glfwMakeContextCurrent(thread->window);
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assert(glfwGetCurrentContext() == thread->window);
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glfwMakeContextCurrent(window);
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glfwSwapInterval(1);
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while (running)
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{
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const float red = (float) sin(glfwGetTime()) / 2.f + 0.5f;
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const float v = (float) fabs(sin(glfwGetTime() * 2.f));
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glClearColor(thread->r * v, thread->g * v, thread->b * v, 0.f);
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glClearColor(red, 0.f, 0.f, 0.f);
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glClear(GL_COLOR_BUFFER_BIT);
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glfwSwapBuffers(window);
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glfwSwapBuffers(thread->window);
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}
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glfwMakeContextCurrent(NULL);
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@ -60,34 +71,60 @@ static int thread_start(void* data)
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int main(void)
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{
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int result;
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GLFWwindow window;
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thrd_t thread;
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int i, result;
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Thread threads[] =
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{
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{ NULL, "Red", 1.f, 0.f, 0.f, 0 },
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{ NULL, "Green", 0.f, 1.f, 0.f, 0 },
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{ NULL, "Blue", 0.f, 0.f, 1.f, 0 }
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};
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const int count = sizeof(threads) / sizeof(Thread);
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if (!glfwInit())
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{
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fprintf(stderr, "Failed to initialize GLFW: %s\n", glfwErrorString(glfwGetError()));
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fprintf(stderr, "Failed to initialize GLFW: %s\n",
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glfwErrorString(glfwGetError()));
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exit(EXIT_FAILURE);
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}
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window = glfwCreateWindow(640, 480, GLFW_WINDOWED, "Multithreading", NULL);
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if (!window)
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for (i = 0; i < count; i++)
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{
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fprintf(stderr, "Failed to open GLFW window: %s\n", glfwErrorString(glfwGetError()));
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exit(EXIT_FAILURE);
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threads[i].window = glfwCreateWindow(200, 200,
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GLFW_WINDOWED,
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threads[i].title,
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NULL);
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if (!threads[i].window)
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{
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fprintf(stderr, "Failed to open GLFW window: %s\n",
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glfwErrorString(glfwGetError()));
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exit(EXIT_FAILURE);
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}
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glfwSetWindowPos(threads[i].window, 200 + 250 * i, 200);
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if (thrd_create(&threads[i].ID, thread_start, threads + i) !=
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thrd_success)
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{
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fprintf(stderr, "Failed to create secondary thread\n");
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exit(EXIT_FAILURE);
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}
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}
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if (thrd_create(&thread, thread_start, window) != thrd_success)
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while (running)
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{
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fprintf(stderr, "Failed to create secondary thread\n");
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exit(EXIT_FAILURE);
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}
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assert(glfwGetCurrentContext() == NULL);
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while (!glfwGetWindowParam(window, GLFW_CLOSE_REQUESTED))
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glfwWaitEvents();
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running = GL_FALSE;
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thrd_join(thread, &result);
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for (i = 0; i < count; i++)
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{
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if (glfwGetWindowParam(threads[i].window, GLFW_CLOSE_REQUESTED))
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running = GL_FALSE;
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}
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}
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for (i = 0; i < count; i++)
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thrd_join(threads[i].ID, &result);
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exit(EXIT_SUCCESS);
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}
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