增加新的OutputGLInfo范例

example/CMakeLists.txt

@@ -1,2 +1,4 @@
 add_subdirectory(EnumRenderDevice)
+add_subdirectory(OutputGLInfo)
 add_subdirectory(NullWindow)
+add_subdirectory(DrawTriangle)

example/DrawTriangle/CMakeLists.txt

@@ -0,0 +1,4 @@
+add_executable(DrawTriangle main.cpp)
+
+target_link_libraries(DrawTriangle PRIVATE glfw GL ULRE.RenderDevice)
+

example/DrawTriangle/main.cpp

@@ -0,0 +1,54 @@
+#include<hgl/render/RenderDevice.h>
+#include<hgl/render/RenderWindow.h>
+#include<iostream>
+#include<GLFW/glfw3.h>
+#include<GL/glext.h>
+
+using namespace hgl;
+
+void draw()
+{
+    glClearColor(0,0,0,1);          //设置清屏颜色
+    glClear(GL_COLOR_BUFFER_BIT);   //清屏
+}
+
+int main(void)
+{
+    RenderDevice *device=CreateRenderDeviceGLFW();
+
+    if(!device)
+    {
+        std::cerr<<"Create RenderDevice(GLFW) failed."<<std::endl;
+        return -1;
+    }
+
+    if(!device->Init())
+    {
+        std::cerr<<"Init RenderDevice(GLFW) failed."<<std::endl;
+        return -2;
+    }
+
+    WindowSetup ws;
+
+    ws.Name=U8_TEXT("Draw Triangle");
+
+    RenderSetup rs;
+
+    RenderWindow *win=device->CreateWindow(1280,720,&ws,&rs);
+
+    win->MakeToCurrent();           //切换当前窗口到前台
+    win->Show();
+
+    while(win->IsOpen())
+    {
+        draw();
+
+        win->SwapBuffer();              //交换前后台显示缓冲区
+        win->PollEvent();               //处理窗口事件
+    }
+
+    delete win;
+    delete device;
+
+    return 0;
+}

example/OutputGLInfo/CMakeLists.txt

@@ -0,0 +1,5 @@
+add_executable(OutputGLInfo main.cpp)
+
+target_link_libraries(OutputGLInfo PRIVATE glfw GL ULRE.RenderDevice)
+
+

example/OutputGLInfo/main.cpp

@@ -0,0 +1,70 @@
+#include<hgl/render/RenderDevice.h>
+#include<hgl/render/RenderWindow.h>
+#include<iostream>
+#include<GLFW/glfw3.h>
+#include<GL/glext.h>
+
+using namespace hgl;
+
+void draw()
+{
+    glClearColor(0,0,0,1);          //设置清屏颜色
+    glClear(GL_COLOR_BUFFER_BIT);   //清屏
+}
+
+void output_ogl_info()
+{
+    std::cout<<"Vendor:     "<<glGetString(GL_VENDOR)<<std::endl;
+    std::cout<<"Renderer:   "<<glGetString(GL_RENDERER)<<std::endl;
+    std::cout<<"Version:    "<<glGetString(GL_VERSION)<<std::endl;
+
+    PFNGLGETSTRINGIPROC glGetStringi = (PFNGLGETSTRINGIPROC)glfwGetProcAddress("glGetStringi");
+
+    if(!glGetStringi)
+        return;
+
+    GLint n=0;
+
+    glGetIntegerv(GL_NUM_EXTENSIONS, &n);
+
+    std::cout<<"Extensions:"<<std::endl;
+
+    for (GLint i=0; i<n; i++)
+        std::cout<<"            "<<i<<" : "<<glGetStringi(GL_EXTENSIONS,i)<<std::endl;
+}
+
+int main(void)
+{
+    RenderDevice *device=CreateRenderDeviceGLFW();
+
+    if(!device)
+    {
+        std::cerr<<"Create RenderDevice(GLFW) failed."<<std::endl;
+        return -1;
+    }
+
+    if(!device->Init())
+    {
+        std::cerr<<"Init RenderDevice(GLFW) failed."<<std::endl;
+        return -2;
+    }
+
+    WindowSetup ws;
+
+    ws.Name=U8_TEXT("Draw Triangle");
+
+    RenderSetup rs;
+
+    RenderWindow *win=device->CreateWindow(1280,720,&ws,&rs);
+
+    win->MakeToCurrent();           //切换当前窗口到前台
+
+    output_ogl_info();
+
+    delete win;
+    delete device;
+
+    return 0;
+}
+
+