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https://github.com/gwm17/glfw.git
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132 lines
3.5 KiB
C
132 lines
3.5 KiB
C
//========================================================================
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// Default window/context test
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// Copyright (c) Camilla Berglund <elmindreda@elmindreda.org>
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//
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// This software is provided 'as-is', without any express or implied
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// warranty. In no event will the authors be held liable for any damages
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// arising from the use of this software.
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//
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// Permission is granted to anyone to use this software for any purpose,
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// including commercial applications, and to alter it and redistribute it
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// freely, subject to the following restrictions:
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//
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// 1. The origin of this software must not be misrepresented; you must not
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// claim that you wrote the original software. If you use this software
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// in a product, an acknowledgment in the product documentation would
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// be appreciated but is not required.
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//
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// 2. Altered source versions must be plainly marked as such, and must not
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// be misrepresented as being the original software.
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//
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// 3. This notice may not be removed or altered from any source
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// distribution.
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//
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//========================================================================
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//
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// This test creates a windowed mode window with all window hints set to
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// default values and then reports the actual attributes of the created
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// window and context
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//
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//========================================================================
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#define GLFW_INCLUDE_GLEXT
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#include <GLFW/glfw3.h>
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#include <stdio.h>
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#include <stdlib.h>
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typedef struct
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{
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int attrib;
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const char* ext;
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const char* name;
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} AttribGL;
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typedef struct
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{
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int attrib;
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const char* name;
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} AttribGLFW;
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static AttribGL gl_attribs[] =
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{
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{ GL_RED_BITS, NULL, "red bits" },
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{ GL_GREEN_BITS, NULL, "green bits" },
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{ GL_BLUE_BITS, NULL, "blue bits" },
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{ GL_ALPHA_BITS, NULL, "alpha bits" },
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{ GL_DEPTH_BITS, NULL, "depth bits" },
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{ GL_STENCIL_BITS, NULL, "stencil bits" },
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{ GL_STEREO, NULL, "stereo" },
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{ GL_SAMPLES_ARB, "GL_ARB_multisample", "FSAA samples" },
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{ 0, NULL, NULL }
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};
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static AttribGLFW glfw_attribs[] =
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{
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{ GLFW_CONTEXT_VERSION_MAJOR, "Context version major" },
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{ GLFW_CONTEXT_VERSION_MINOR, "Context version minor" },
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{ GLFW_OPENGL_FORWARD_COMPAT, "OpenGL forward compatible" },
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{ GLFW_OPENGL_DEBUG_CONTEXT, "OpenGL debug context" },
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{ GLFW_OPENGL_PROFILE, "OpenGL profile" },
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{ 0, NULL }
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};
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static void error_callback(int error, const char* description)
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{
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fprintf(stderr, "Error: %s\n", description);
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}
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int main(void)
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{
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int i, width, height;
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GLFWwindow* window;
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glfwSetErrorCallback(error_callback);
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if (!glfwInit())
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exit(EXIT_FAILURE);
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glfwWindowHint(GLFW_VISIBLE, GL_FALSE);
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window = glfwCreateWindow(640, 480, "Defaults", NULL, NULL);
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if (!window)
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{
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glfwTerminate();
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exit(EXIT_FAILURE);
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}
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glfwMakeContextCurrent(window);
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glfwGetFramebufferSize(window, &width, &height);
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printf("framebuffer size: %ix%i\n", width, height);
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for (i = 0; glfw_attribs[i].name; i++)
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{
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printf("%s: %i\n",
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glfw_attribs[i].name,
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glfwGetWindowAttrib(window, glfw_attribs[i].attrib));
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}
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for (i = 0; gl_attribs[i].name; i++)
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{
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GLint value = 0;
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if (gl_attribs[i].ext)
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{
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if (!glfwExtensionSupported(gl_attribs[i].ext))
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continue;
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}
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glGetIntegerv(gl_attribs[i].attrib, &value);
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printf("%s: %i\n", gl_attribs[i].name, value);
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}
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glfwDestroyWindow(window);
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window = NULL;
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glfwTerminate();
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exit(EXIT_SUCCESS);
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}
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