Demos (master): Mesa-demos: add wglcontext to test the creation of a context through WGL_ARB_create_context
Jose Fonseca
jrfonseca at kemper.freedesktop.org
Wed Nov 2 12:16:29 UTC 2011
Module: Demos
Branch: master
Commit: e38396b2c19ee65a6cd0e8f44fb7d051d7851a3a
URL: http://cgit.freedesktop.org/mesa/demos/commit/?id=e38396b2c19ee65a6cd0e8f44fb7d051d7851a3a
Author: Morgan Armand <morgan.devel at gmail.com>
Date: Sun Oct 30 17:45:17 2011 +0100
Mesa-demos: add wglcontext to test the creation of a context through WGL_ARB_create_context
Signed-off-by: José Fonseca <jfonseca at vmware.com>
---
src/wgl/CMakeLists.txt | 1 +
src/wgl/wglcontext.c | 274 ++++++++++++++++++++++++++++++++++++++++++++++++
2 files changed, 275 insertions(+), 0 deletions(-)
diff --git a/src/wgl/CMakeLists.txt b/src/wgl/CMakeLists.txt
index 834e836..88e6a20 100644
--- a/src/wgl/CMakeLists.txt
+++ b/src/wgl/CMakeLists.txt
@@ -13,5 +13,6 @@ add_executable (wgl_sharedtex_mt sharedtex_mt.c)
set_target_properties (wgl_sharedtex_mt PROPERTIES OUTPUT_NAME sharedtex_mt)
add_executable (wglinfo wglinfo.c)
+add_executable (wglcontext wglcontext.c)
install (TARGETS wglthreads wgl_sharedtex_mt wglinfo DESTINATION wgl)
diff --git a/src/wgl/wglcontext.c b/src/wgl/wglcontext.c
new file mode 100644
index 0000000..957689b
--- /dev/null
+++ b/src/wgl/wglcontext.c
@@ -0,0 +1,274 @@
+/*
+ * Copyright (C) 2011 Morgan Armand <morgan.devel at gmail.com>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#include <windows.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <GL/gl.h>
+#include <GL/glext.h>
+#include <GL/wglext.h>
+
+static LRESULT CALLBACK
+WndProc(HWND hWnd,
+ UINT uMsg,
+ WPARAM wParam,
+ LPARAM lParam )
+{
+ switch (uMsg) {
+ case WM_DESTROY:
+ PostQuitMessage(0);
+ break;
+ default:
+ return DefWindowProc(hWnd, uMsg, wParam, lParam);
+ }
+
+ return 0;
+}
+
+static char *
+context_error_to_string(DWORD error)
+{
+ switch (error) {
+ case ERROR_INVALID_VERSION_ARB: return "ERROR_INVALID_VERSION_ARB";
+ case ERROR_INVALID_PROFILE_ARB: return "ERROR_INVALID_PROFILE_ARB";
+ case ERROR_INVALID_OPERATION: return "ERROR_INVALID_OPERATION";
+ case ERROR_DC_NOT_FOUND: return "ERROR_DC_NOT_FOUND";
+ case ERROR_INVALID_PIXEL_FORMAT: return "ERROR_INVALID_PIXEL_FORMAT";
+ case ERROR_NO_SYSTEM_RESOURCES: return "ERROR_NO_SYSTEM_RESOURCES";
+ case ERROR_INVALID_PARAMETER: return "ERROR_INVALID_PARAMETER";
+ default: return "Unknown Error";
+ }
+}
+
+static char *
+profile_mask_to_string(GLint profileMask)
+{
+ switch (profileMask) {
+ case WGL_CONTEXT_CORE_PROFILE_BIT_ARB:
+ return "WGL_CONTEXT_CORE_PROFILE_BIT_ARB";
+ case WGL_CONTEXT_COMPATIBILITY_PROFILE_BIT_ARB:
+ return "WGL_CONTEXT_COMPATIBILITY_PROFILE_BIT_ARB";
+ default:
+ return "0";
+ }
+}
+
+static void
+print_context_infos()
+{
+ GLint majorVersion;
+ GLint minorVersion;
+ GLint profileMask;
+ const GLubyte *version;
+
+ fprintf(stdout, "Context Informations\n");
+
+ version = glGetString(GL_VERSION);
+ fprintf(stdout, "GL_VERSION: %s\n", glGetString(GL_VERSION));
+
+ // Request informations with the new 3.x features.
+ if (sscanf(version, "%d.%d", &majorVersion, &minorVersion) != 2)
+ return;
+
+ if (majorVersion >= 3) {
+ glGetIntegerv(GL_MAJOR_VERSION, &majorVersion);
+ glGetIntegerv(GL_MINOR_VERSION, &minorVersion);
+ glGetIntegerv(GL_CONTEXT_PROFILE_MASK, &profileMask);
+ fprintf(stdout, "GL_MAJOR_VERSION: %d\n", majorVersion);
+ fprintf(stdout, "GL_MINOR_VERSION: %d\n", minorVersion);
+ fprintf(stdout, "GL_CONTEXT_PROFILE_MASK: %s\n", profile_mask_to_string(profileMask));
+ }
+}
+
+static void
+create_context(int majorVersion, int minorVersion, int profileMask, int contextFlags)
+{
+ WNDCLASS wc;
+ HWND win;
+ HDC hdc;
+ PIXELFORMATDESCRIPTOR pfd;
+ int pixelFormat;
+ HGLRC tmp, ctx;
+ PFNWGLCREATECONTEXTATTRIBSARBPROC wglCreateContextAttribsARB;
+ int attribsList[] = {
+ WGL_CONTEXT_MAJOR_VERSION_ARB, 1,
+ WGL_CONTEXT_MINOR_VERSION_ARB, 0,
+ WGL_CONTEXT_FLAGS_ARB, 0,
+ WGL_CONTEXT_PROFILE_MASK_ARB, WGL_CONTEXT_CORE_PROFILE_BIT_ARB,
+ 0
+ };
+
+ memset(&wc, 0, sizeof(wc));
+ wc.style = CS_OWNDC | CS_HREDRAW | CS_VREDRAW;
+ wc.lpfnWndProc = WndProc;
+ wc.hIcon = LoadIcon(NULL, IDI_APPLICATION);
+ wc.hCursor = LoadCursor(NULL, IDC_ARROW);
+ wc.hbrBackground = (HBRUSH) (COLOR_BTNFACE + 1);
+ wc.lpszClassName = "wglcontext";
+
+ if (!RegisterClass(&wc)) {
+ fprintf(stderr, "RegisterClass() failed\n");
+ return;
+ }
+
+ win = CreateWindowEx(0,
+ wc.lpszClassName,
+ "wglinfo",
+ WS_CLIPSIBLINGS | WS_CLIPCHILDREN,
+ CW_USEDEFAULT,
+ CW_USEDEFAULT,
+ CW_USEDEFAULT,
+ CW_USEDEFAULT,
+ NULL,
+ NULL,
+ wc.hInstance,
+ NULL);
+ if (!win) {
+ fprintf(stderr, "CreateWindowEx() failed\n");
+ return;
+ }
+
+ hdc = GetDC(win);
+ if (!hdc) {
+ fprintf(stderr, "GetDC() failed\n");
+ return;
+ }
+
+ memset(&pfd, 0, sizeof(pfd));
+ pfd.nVersion = 1;
+ pfd.nSize = sizeof(pfd);
+ pfd.dwFlags = PFD_DRAW_TO_WINDOW | PFD_SUPPORT_OPENGL;
+ pfd.iPixelType = PFD_TYPE_RGBA;
+ pfd.cColorBits = 24;
+ pfd.cDepthBits = 24;
+ pfd.iLayerType = PFD_MAIN_PLANE;
+
+ pixelFormat = ChoosePixelFormat(hdc, &pfd);
+ if (!pixelFormat) {
+ fprintf(stderr, "ChoosePixelFormat() failed\n");
+ return;
+ }
+
+ if (!SetPixelFormat(hdc, pixelFormat, &pfd)) {
+ fprintf(stderr, "SetPixelFormat() failed\n");
+ return;
+ }
+
+ tmp = wglCreateContext(hdc);
+ if (!tmp) {
+ fprintf(stderr, "wglCreateContext() failed\n");
+ return;
+ }
+
+ if (!wglMakeCurrent(hdc, tmp)) {
+ fprintf(stderr, "wglMakeCurrent() failed\n");
+ return;
+ }
+
+ wglCreateContextAttribsARB =
+ (PFNWGLCREATECONTEXTATTRIBSARBPROC)wglGetProcAddress("wglCreateContextAttribsARB");
+
+ if (!wglCreateContextAttribsARB) {
+ fprintf(stderr, "wglCreateContextAttribsARB isn't supported\n");
+ return;
+ }
+
+ attribsList[1] = majorVersion;
+ attribsList[3] = minorVersion;
+ attribsList[5] = contextFlags;
+ attribsList[7] = profileMask;
+
+ ctx = wglCreateContextAttribsARB(hdc, 0, attribsList);
+ if (!ctx) {
+ DWORD error = GetLastError();
+ fprintf(stderr, "wglCreateContextAttribsARB failed(): %s (0x%x)\n",
+ context_error_to_string(error), error);
+ return;
+ }
+
+ wglMakeCurrent(NULL, NULL);
+ wglDeleteContext(tmp);
+
+ if (!wglMakeCurrent(hdc, ctx)) {
+ fprintf(stderr, "wglMakeCurrent() failed\n");
+ return;
+ }
+
+ print_context_infos(majorVersion);
+}
+
+static void
+usage(void)
+{
+ fprintf(stdout, "Usage: wglcontext [-h] [-major <major>] [-minor <minor>] [-core] [-compat] [-debug] [-forward]\n");
+ fprintf(stdout, " -major : specify the major version you want\n");
+ fprintf(stdout, " -minor : specify the minor version you want\n");
+ fprintf(stdout, " -core : request a context implementing the core profile\n");
+ fprintf(stdout, " -compat : request a context implementing the compatibility profile\n");
+ fprintf(stdout, " -debug : request a debug context\n");
+ fprintf(stdout, " -forward : request a forward-compatible context\n");
+
+}
+
+int
+main(int argc, char *argv[])
+{
+ int i;
+ int majorVersion = 1, minorVersion = 0;
+ int contextFlags = 0x0;
+ int profileMask = WGL_CONTEXT_CORE_PROFILE_BIT_ARB;
+
+ for (i = 1; i < argc; i++) {
+ if (strcmp(argv[i], "-h") == 0) {
+ usage();
+ exit(0);
+ }
+ else if (strcmp(argv[i], "-major") == 0 && i + 1 < argc) {
+ majorVersion = (int)strtol(argv[i + 1], (char **)NULL, 10);
+ i++;
+ }
+ else if (strcmp(argv[i], "-minor") == 0 && i + 1 < argc) {
+ minorVersion = (int)strtol(argv[i + 1], (char **)NULL, 10);
+ i++;
+ }
+ else if (strcmp(argv[i], "-core") == 0) {
+ profileMask = WGL_CONTEXT_CORE_PROFILE_BIT_ARB;
+ }
+ else if (strcmp(argv[i], "-compat") == 0) {
+ profileMask = WGL_CONTEXT_COMPATIBILITY_PROFILE_BIT_ARB;
+ }
+ else if (strcmp(argv[i], "-debug") == 0) {
+ contextFlags |= WGL_CONTEXT_DEBUG_BIT_ARB;
+ }
+ else if (strcmp(argv[i], "-forward") == 0) {
+ contextFlags |= WGL_CONTEXT_FORWARD_COMPATIBLE_BIT_ARB;
+ }
+ else {
+ usage();
+ exit(1);
+ }
+ }
+
+ create_context(majorVersion, minorVersion,
+ profileMask, contextFlags);
+
+ return 0;
+}
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