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//========================================================================
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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", "MSAA 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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