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@ -30,15 +30,653 @@ |
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#include "internal.h" |
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#include <stdlib.h> |
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// This is the only glXGetProcAddress variant not declared by glxext.h
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void (*glXGetProcAddressEXT(const GLubyte* procName))(); |
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//========================================================================
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// Returns the specified attribute of the specified GLXFBConfig
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// NOTE: Do not call this unless we have found GLX 1.3+ or GLX_SGIX_fbconfig
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//========================================================================
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static int getFBConfigAttrib(_GLFWwindow* window, GLXFBConfig fbconfig, int attrib) |
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{ |
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int value; |
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if (_glfwLibrary.GLX.SGIX_fbconfig) |
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{ |
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_glfwLibrary.GLX.GetFBConfigAttribSGIX(_glfwLibrary.X11.display, |
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fbconfig, attrib, &value); |
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} |
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else |
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glXGetFBConfigAttrib(_glfwLibrary.X11.display, fbconfig, attrib, &value); |
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return value; |
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} |
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//========================================================================
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// Return a list of available and usable framebuffer configs
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//========================================================================
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static _GLFWfbconfig* getFBConfigs(_GLFWwindow* window, unsigned int* found) |
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{ |
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GLXFBConfig* fbconfigs; |
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_GLFWfbconfig* result; |
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int i, count = 0; |
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const char* vendor; |
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GLboolean trustWindowBit = GL_TRUE; |
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*found = 0; |
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if (_glfwLibrary.GLX.majorVersion == 1 && _glfwLibrary.GLX.minorVersion < 3) |
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{ |
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if (!_glfwLibrary.GLX.SGIX_fbconfig) |
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{ |
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_glfwSetError(GLFW_OPENGL_UNAVAILABLE, |
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"X11/GLX: GLXFBConfig support not found"); |
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return NULL; |
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} |
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} |
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vendor = glXGetClientString(_glfwLibrary.X11.display, GLX_VENDOR); |
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if (strcmp(vendor, "Chromium") == 0) |
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{ |
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// This is a (hopefully temporary) workaround for Chromium (VirtualBox
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// GL) not setting the window bit on any GLXFBConfigs
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trustWindowBit = GL_FALSE; |
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} |
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if (_glfwLibrary.GLX.SGIX_fbconfig) |
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{ |
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fbconfigs = _glfwLibrary.GLX.ChooseFBConfigSGIX(_glfwLibrary.X11.display, |
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_glfwLibrary.X11.screen, |
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NULL, |
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&count); |
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if (!count) |
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{ |
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_glfwSetError(GLFW_OPENGL_UNAVAILABLE, |
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"X11/GLX: No GLXFBConfigs returned"); |
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return NULL; |
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} |
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} |
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else |
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{ |
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fbconfigs = glXGetFBConfigs(_glfwLibrary.X11.display, |
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_glfwLibrary.X11.screen, |
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&count); |
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if (!count) |
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{ |
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_glfwSetError(GLFW_OPENGL_UNAVAILABLE, |
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"X11/GLX: No GLXFBConfigs returned"); |
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return NULL; |
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} |
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} |
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result = (_GLFWfbconfig*) malloc(sizeof(_GLFWfbconfig) * count); |
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if (!result) |
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{ |
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_glfwSetError(GLFW_OUT_OF_MEMORY, |
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"X11/GLX: Failed to allocate _GLFWfbconfig array"); |
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return NULL; |
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} |
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for (i = 0; i < count; i++) |
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{ |
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if (!getFBConfigAttrib(window, fbconfigs[i], GLX_DOUBLEBUFFER) || |
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!getFBConfigAttrib(window, fbconfigs[i], GLX_VISUAL_ID)) |
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{ |
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// Only consider double-buffered GLXFBConfigs with associated visuals
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continue; |
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} |
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if (!(getFBConfigAttrib(window, |
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fbconfigs[i], |
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GLX_RENDER_TYPE) & GLX_RGBA_BIT)) |
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{ |
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// Only consider RGBA GLXFBConfigs
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continue; |
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} |
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if (!(getFBConfigAttrib(window, fbconfigs[i], GLX_DRAWABLE_TYPE) & GLX_WINDOW_BIT)) |
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{ |
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if (trustWindowBit) |
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{ |
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// Only consider window GLXFBConfigs
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continue; |
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} |
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} |
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result[*found].redBits = getFBConfigAttrib(window, fbconfigs[i], GLX_RED_SIZE); |
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result[*found].greenBits = getFBConfigAttrib(window, fbconfigs[i], GLX_GREEN_SIZE); |
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result[*found].blueBits = getFBConfigAttrib(window, fbconfigs[i], GLX_BLUE_SIZE); |
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result[*found].alphaBits = getFBConfigAttrib(window, fbconfigs[i], GLX_ALPHA_SIZE); |
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result[*found].depthBits = getFBConfigAttrib(window, fbconfigs[i], GLX_DEPTH_SIZE); |
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result[*found].stencilBits = getFBConfigAttrib(window, fbconfigs[i], GLX_STENCIL_SIZE); |
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result[*found].accumRedBits = getFBConfigAttrib(window, fbconfigs[i], GLX_ACCUM_RED_SIZE); |
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result[*found].accumGreenBits = getFBConfigAttrib(window, fbconfigs[i], GLX_ACCUM_GREEN_SIZE); |
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result[*found].accumBlueBits = getFBConfigAttrib(window, fbconfigs[i], GLX_ACCUM_BLUE_SIZE); |
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result[*found].accumAlphaBits = getFBConfigAttrib(window, fbconfigs[i], GLX_ACCUM_ALPHA_SIZE); |
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result[*found].auxBuffers = getFBConfigAttrib(window, fbconfigs[i], GLX_AUX_BUFFERS); |
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result[*found].stereo = getFBConfigAttrib(window, fbconfigs[i], GLX_STEREO); |
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if (_glfwLibrary.GLX.ARB_multisample) |
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result[*found].samples = getFBConfigAttrib(window, fbconfigs[i], GLX_SAMPLES); |
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else |
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result[*found].samples = 0; |
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result[*found].platformID = (GLFWintptr) getFBConfigAttrib(window, fbconfigs[i], GLX_FBCONFIG_ID); |
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(*found)++; |
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} |
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XFree(fbconfigs); |
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return result; |
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} |
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//========================================================================
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// Error handler for BadMatch errors when requesting context with
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// unavailable OpenGL versions using the GLX_ARB_create_context extension
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//========================================================================
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static int errorHandler(Display *display, XErrorEvent* event) |
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{ |
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return 0; |
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} |
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//========================================================================
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// Read back framebuffer parameters from the context
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//========================================================================
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static void refreshContextParams(_GLFWwindow* window, GLXFBConfigID fbconfigID) |
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{ |
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int dummy; |
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GLXFBConfig* fbconfig; |
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int attribs[] = { GLX_FBCONFIG_ID, fbconfigID, None }; |
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if (_glfwLibrary.GLX.SGIX_fbconfig) |
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{ |
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fbconfig = _glfwLibrary.GLX.ChooseFBConfigSGIX(_glfwLibrary.X11.display, |
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_glfwLibrary.X11.screen, |
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attribs, |
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&dummy); |
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} |
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else |
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{ |
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fbconfig = glXChooseFBConfig(_glfwLibrary.X11.display, |
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_glfwLibrary.X11.screen, |
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attribs, |
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&dummy); |
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} |
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if (fbconfig == NULL) |
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{ |
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// This should never ever happen
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// TODO: Flag this as an error and propagate up
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_glfwSetError(GLFW_PLATFORM_ERROR, "X11/GLX: Cannot find known " |
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"GLXFBConfig by ID. This cannot " |
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"happen. Have a nice day.\n"); |
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abort(); |
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} |
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// There is no clear definition of an "accelerated" context on X11/GLX, and
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// true sounds better than false, so we hardcode true here
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window->accelerated = GL_TRUE; |
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window->redBits = getFBConfigAttrib(window, *fbconfig, GLX_RED_SIZE); |
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window->greenBits = getFBConfigAttrib(window, *fbconfig, GLX_GREEN_SIZE); |
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window->blueBits = getFBConfigAttrib(window, *fbconfig, GLX_BLUE_SIZE); |
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window->alphaBits = getFBConfigAttrib(window, *fbconfig, GLX_ALPHA_SIZE); |
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window->depthBits = getFBConfigAttrib(window, *fbconfig, GLX_DEPTH_SIZE); |
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window->stencilBits = getFBConfigAttrib(window, *fbconfig, GLX_STENCIL_SIZE); |
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window->accumRedBits = getFBConfigAttrib(window, *fbconfig, GLX_ACCUM_RED_SIZE); |
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window->accumGreenBits = getFBConfigAttrib(window, *fbconfig, GLX_ACCUM_GREEN_SIZE); |
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window->accumBlueBits = getFBConfigAttrib(window, *fbconfig, GLX_ACCUM_BLUE_SIZE); |
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window->accumAlphaBits = getFBConfigAttrib(window, *fbconfig, GLX_ACCUM_ALPHA_SIZE); |
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window->auxBuffers = getFBConfigAttrib(window, *fbconfig, GLX_AUX_BUFFERS); |
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window->stereo = getFBConfigAttrib(window, *fbconfig, GLX_STEREO) ? GL_TRUE : GL_FALSE; |
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// Get FSAA buffer sample count
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if (_glfwLibrary.GLX.ARB_multisample) |
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window->samples = getFBConfigAttrib(window, *fbconfig, GLX_SAMPLES); |
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else |
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window->samples = 0; |
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XFree(fbconfig); |
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} |
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//========================================================================
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// Create the actual OpenGL context
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//========================================================================
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#define setGLXattrib(attribs, index, attribName, attribValue) \ |
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attribs[index++] = attribName; \
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attribs[index++] = attribValue; |
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static int createContext(_GLFWwindow* window, |
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const _GLFWwndconfig* wndconfig, |
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GLXFBConfigID fbconfigID) |
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{ |
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int attribs[40]; |
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int dummy, index; |
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GLXFBConfig* fbconfig; |
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GLXContext share = NULL; |
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if (wndconfig->share) |
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share = wndconfig->share->GLX.context; |
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// Retrieve the previously selected GLXFBConfig
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{ |
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index = 0; |
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setGLXattrib(attribs, index, GLX_FBCONFIG_ID, (int) fbconfigID); |
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setGLXattrib(attribs, index, None, None); |
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if (_glfwLibrary.GLX.SGIX_fbconfig) |
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{ |
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fbconfig = _glfwLibrary.GLX.ChooseFBConfigSGIX(_glfwLibrary.X11.display, |
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_glfwLibrary.X11.screen, |
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attribs, |
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&dummy); |
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} |
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else |
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{ |
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fbconfig = glXChooseFBConfig(_glfwLibrary.X11.display, |
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_glfwLibrary.X11.screen, |
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attribs, |
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&dummy); |
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} |
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if (fbconfig == NULL) |
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{ |
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_glfwSetError(GLFW_PLATFORM_ERROR, |
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"X11/GLX: Failed to retrieve the selected GLXFBConfig"); |
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return GL_FALSE; |
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} |
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} |
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// Retrieve the corresponding visual
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if (_glfwLibrary.GLX.SGIX_fbconfig) |
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{ |
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window->GLX.visual = _glfwLibrary.GLX.GetVisualFromFBConfigSGIX(_glfwLibrary.X11.display, |
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*fbconfig); |
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} |
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else |
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{ |
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window->GLX.visual = glXGetVisualFromFBConfig(_glfwLibrary.X11.display, |
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*fbconfig); |
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} |
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if (window->GLX.visual == NULL) |
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{ |
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XFree(fbconfig); |
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_glfwSetError(GLFW_PLATFORM_ERROR, |
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"X11/GLX: Failed to retrieve visual for GLXFBConfig"); |
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return GL_FALSE; |
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} |
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if (_glfwLibrary.GLX.ARB_create_context) |
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{ |
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index = 0; |
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if (wndconfig->glMajor != 1 || wndconfig->glMinor != 0) |
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{ |
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// Request an explicitly versioned context
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setGLXattrib(attribs, index, GLX_CONTEXT_MAJOR_VERSION_ARB, wndconfig->glMajor); |
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setGLXattrib(attribs, index, GLX_CONTEXT_MINOR_VERSION_ARB, wndconfig->glMinor); |
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} |
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if (wndconfig->glForward || wndconfig->glDebug || wndconfig->glRobustness) |
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{ |
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int flags = 0; |
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if (wndconfig->glForward) |
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flags |= GLX_CONTEXT_FORWARD_COMPATIBLE_BIT_ARB; |
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if (wndconfig->glDebug) |
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flags |= GLX_CONTEXT_DEBUG_BIT_ARB; |
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if (wndconfig->glRobustness) |
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flags |= GLX_CONTEXT_ROBUST_ACCESS_BIT_ARB; |
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setGLXattrib(attribs, index, GLX_CONTEXT_FLAGS_ARB, flags); |
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} |
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if (wndconfig->glProfile) |
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{ |
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int flags = 0; |
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if (!_glfwLibrary.GLX.ARB_create_context_profile) |
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{ |
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_glfwSetError(GLFW_VERSION_UNAVAILABLE, |
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"X11/GLX: An OpenGL profile requested but " |
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"GLX_ARB_create_context_profile is unavailable"); |
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return GL_FALSE; |
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} |
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if (wndconfig->glProfile == GLFW_OPENGL_ES2_PROFILE && |
|
|
|
|
!_glfwLibrary.GLX.EXT_create_context_es2_profile) |
|
|
|
|
{ |
|
|
|
|
_glfwSetError(GLFW_VERSION_UNAVAILABLE, |
|
|
|
|
"X11/GLX: OpenGL ES 2.x profile requested but " |
|
|
|
|
"GLX_EXT_create_context_es2_profile is unavailable"); |
|
|
|
|
return GL_FALSE; |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
if (wndconfig->glProfile == GLFW_OPENGL_CORE_PROFILE) |
|
|
|
|
flags = GLX_CONTEXT_CORE_PROFILE_BIT_ARB; |
|
|
|
|
else if (wndconfig->glProfile == GLFW_OPENGL_COMPAT_PROFILE) |
|
|
|
|
flags = GLX_CONTEXT_COMPATIBILITY_PROFILE_BIT_ARB; |
|
|
|
|
else if (wndconfig->glProfile == GLFW_OPENGL_ES2_PROFILE) |
|
|
|
|
flags = GLX_CONTEXT_ES2_PROFILE_BIT_EXT; |
|
|
|
|
|
|
|
|
|
setGLXattrib(attribs, index, GLX_CONTEXT_PROFILE_MASK_ARB, flags); |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
if (wndconfig->glRobustness) |
|
|
|
|
{ |
|
|
|
|
int strategy; |
|
|
|
|
|
|
|
|
|
if (!_glfwLibrary.GLX.ARB_create_context_robustness) |
|
|
|
|
{ |
|
|
|
|
_glfwSetError(GLFW_VERSION_UNAVAILABLE, |
|
|
|
|
"X11/GLX: An OpenGL robustness strategy was " |
|
|
|
|
"requested but GLX_ARB_create_context_robustness " |
|
|
|
|
"is unavailable"); |
|
|
|
|
return GL_FALSE; |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
if (wndconfig->glRobustness == GLFW_OPENGL_NO_RESET_NOTIFICATION) |
|
|
|
|
strategy = GLX_NO_RESET_NOTIFICATION_ARB; |
|
|
|
|
else if (wndconfig->glRobustness == GLFW_OPENGL_LOSE_CONTEXT_ON_RESET) |
|
|
|
|
strategy = GLX_LOSE_CONTEXT_ON_RESET_ARB; |
|
|
|
|
|
|
|
|
|
setGLXattrib(attribs, |
|
|
|
|
index, |
|
|
|
|
GLX_CONTEXT_RESET_NOTIFICATION_STRATEGY_ARB, |
|
|
|
|
strategy); |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
setGLXattrib(attribs, index, None, None); |
|
|
|
|
|
|
|
|
|
// This is the only place we set an Xlib error handler, and we only do
|
|
|
|
|
// it because glXCreateContextAttribsARB generates a BadMatch error if
|
|
|
|
|
// the requested OpenGL version is unavailable (instead of a civilized
|
|
|
|
|
// response like returning NULL)
|
|
|
|
|
XSetErrorHandler(errorHandler); |
|
|
|
|
|
|
|
|
|
window->GLX.context = |
|
|
|
|
_glfwLibrary.GLX.CreateContextAttribsARB(_glfwLibrary.X11.display, |
|
|
|
|
*fbconfig, |
|
|
|
|
share, |
|
|
|
|
True, |
|
|
|
|
attribs); |
|
|
|
|
|
|
|
|
|
// We are done, so unset the error handler again (see above)
|
|
|
|
|
XSetErrorHandler(NULL); |
|
|
|
|
} |
|
|
|
|
else |
|
|
|
|
{ |
|
|
|
|
if (_glfwLibrary.GLX.SGIX_fbconfig) |
|
|
|
|
{ |
|
|
|
|
window->GLX.context = |
|
|
|
|
_glfwLibrary.GLX.CreateContextWithConfigSGIX(_glfwLibrary.X11.display, |
|
|
|
|
*fbconfig, |
|
|
|
|
GLX_RGBA_TYPE, |
|
|
|
|
share, |
|
|
|
|
True); |
|
|
|
|
} |
|
|
|
|
else |
|
|
|
|
{ |
|
|
|
|
window->GLX.context = glXCreateNewContext(_glfwLibrary.X11.display, |
|
|
|
|
*fbconfig, |
|
|
|
|
GLX_RGBA_TYPE, |
|
|
|
|
share, |
|
|
|
|
True); |
|
|
|
|
} |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
XFree(fbconfig); |
|
|
|
|
|
|
|
|
|
if (window->GLX.context == NULL) |
|
|
|
|
{ |
|
|
|
|
// TODO: Handle all the various error codes here
|
|
|
|
|
|
|
|
|
|
_glfwSetError(GLFW_PLATFORM_ERROR, |
|
|
|
|
"X11/GLX: Failed to create OpenGL context"); |
|
|
|
|
return GL_FALSE; |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
refreshContextParams(window, fbconfigID); |
|
|
|
|
|
|
|
|
|
return GL_TRUE; |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
#undef setGLXattrib |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
//////////////////////////////////////////////////////////////////////////
|
|
|
|
|
////// GLFW internal API //////
|
|
|
|
|
//////////////////////////////////////////////////////////////////////////
|
|
|
|
|
|
|
|
|
|
//========================================================================
|
|
|
|
|
// Initialize GLX
|
|
|
|
|
//========================================================================
|
|
|
|
|
|
|
|
|
|
int _glfwInitOpenGL(void) |
|
|
|
|
{ |
|
|
|
|
#ifdef _GLFW_DLOPEN_LIBGL |
|
|
|
|
int i; |
|
|
|
|
char* libGL_names[ ] = |
|
|
|
|
{ |
|
|
|
|
"libGL.so", |
|
|
|
|
"libGL.so.1", |
|
|
|
|
"/usr/lib/libGL.so", |
|
|
|
|
"/usr/lib/libGL.so.1", |
|
|
|
|
NULL |
|
|
|
|
}; |
|
|
|
|
|
|
|
|
|
for (i = 0; libGL_names[i] != NULL; i++) |
|
|
|
|
{ |
|
|
|
|
_glfwLibrary.GLX.libGL = dlopen(libGL_names[i], RTLD_LAZY | RTLD_GLOBAL); |
|
|
|
|
if (_glfwLibrary.GLX.libGL) |
|
|
|
|
break; |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
if (!_glfwLibrary.GLX.libGL) |
|
|
|
|
{ |
|
|
|
|
_glfwSetError(GLFW_PLATFORM_ERROR, "X11/GLX: Failed to find libGL"); |
|
|
|
|
return GL_FALSE; |
|
|
|
|
} |
|
|
|
|
#endif |
|
|
|
|
|
|
|
|
|
// Check if GLX is supported on this display
|
|
|
|
|
if (!glXQueryExtension(_glfwLibrary.X11.display, NULL, NULL)) |
|
|
|
|
{ |
|
|
|
|
_glfwSetError(GLFW_OPENGL_UNAVAILABLE, "X11/GLX: GLX supported not found"); |
|
|
|
|
return GL_FALSE; |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
if (!glXQueryVersion(_glfwLibrary.X11.display, |
|
|
|
|
&_glfwLibrary.GLX.majorVersion, |
|
|
|
|
&_glfwLibrary.GLX.minorVersion)) |
|
|
|
|
{ |
|
|
|
|
_glfwSetError(GLFW_OPENGL_UNAVAILABLE, |
|
|
|
|
"X11/GLX: Failed to query GLX version"); |
|
|
|
|
return GL_FALSE; |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
if (_glfwPlatformExtensionSupported("GLX_EXT_swap_control")) |
|
|
|
|
{ |
|
|
|
|
_glfwLibrary.GLX.SwapIntervalEXT = (PFNGLXSWAPINTERVALEXTPROC) |
|
|
|
|
_glfwPlatformGetProcAddress("glXSwapIntervalEXT"); |
|
|
|
|
|
|
|
|
|
if (_glfwLibrary.GLX.SwapIntervalEXT) |
|
|
|
|
_glfwLibrary.GLX.EXT_swap_control = GL_TRUE; |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
if (_glfwPlatformExtensionSupported("GLX_SGI_swap_control")) |
|
|
|
|
{ |
|
|
|
|
_glfwLibrary.GLX.SwapIntervalSGI = (PFNGLXSWAPINTERVALSGIPROC) |
|
|
|
|
_glfwPlatformGetProcAddress("glXSwapIntervalSGI"); |
|
|
|
|
|
|
|
|
|
if (_glfwLibrary.GLX.SwapIntervalSGI) |
|
|
|
|
_glfwLibrary.GLX.SGI_swap_control = GL_TRUE; |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
if (_glfwPlatformExtensionSupported("GLX_SGIX_fbconfig")) |
|
|
|
|
{ |
|
|
|
|
_glfwLibrary.GLX.GetFBConfigAttribSGIX = (PFNGLXGETFBCONFIGATTRIBSGIXPROC) |
|
|
|
|
_glfwPlatformGetProcAddress("glXGetFBConfigAttribSGIX"); |
|
|
|
|
_glfwLibrary.GLX.ChooseFBConfigSGIX = (PFNGLXCHOOSEFBCONFIGSGIXPROC) |
|
|
|
|
_glfwPlatformGetProcAddress("glXChooseFBConfigSGIX"); |
|
|
|
|
_glfwLibrary.GLX.CreateContextWithConfigSGIX = (PFNGLXCREATECONTEXTWITHCONFIGSGIXPROC) |
|
|
|
|
_glfwPlatformGetProcAddress("glXCreateContextWithConfigSGIX"); |
|
|
|
|
_glfwLibrary.GLX.GetVisualFromFBConfigSGIX = (PFNGLXGETVISUALFROMFBCONFIGSGIXPROC) |
|
|
|
|
_glfwPlatformGetProcAddress("glXGetVisualFromFBConfigSGIX"); |
|
|
|
|
|
|
|
|
|
if (_glfwLibrary.GLX.GetFBConfigAttribSGIX && |
|
|
|
|
_glfwLibrary.GLX.ChooseFBConfigSGIX && |
|
|
|
|
_glfwLibrary.GLX.CreateContextWithConfigSGIX && |
|
|
|
|
_glfwLibrary.GLX.GetVisualFromFBConfigSGIX) |
|
|
|
|
{ |
|
|
|
|
_glfwLibrary.GLX.SGIX_fbconfig = GL_TRUE; |
|
|
|
|
} |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
if (_glfwPlatformExtensionSupported("GLX_ARB_multisample")) |
|
|
|
|
_glfwLibrary.GLX.ARB_multisample = GL_TRUE; |
|
|
|
|
|
|
|
|
|
if (_glfwPlatformExtensionSupported("GLX_ARB_create_context")) |
|
|
|
|
{ |
|
|
|
|
_glfwLibrary.GLX.CreateContextAttribsARB = (PFNGLXCREATECONTEXTATTRIBSARBPROC) |
|
|
|
|
_glfwPlatformGetProcAddress("glXCreateContextAttribsARB"); |
|
|
|
|
|
|
|
|
|
if (_glfwLibrary.GLX.CreateContextAttribsARB) |
|
|
|
|
_glfwLibrary.GLX.ARB_create_context = GL_TRUE; |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
if (_glfwPlatformExtensionSupported("GLX_ARB_create_context_robustness")) |
|
|
|
|
_glfwLibrary.GLX.ARB_create_context_robustness = GL_TRUE; |
|
|
|
|
|
|
|
|
|
if (_glfwPlatformExtensionSupported("GLX_ARB_create_context_profile")) |
|
|
|
|
_glfwLibrary.GLX.ARB_create_context_profile = GL_TRUE; |
|
|
|
|
|
|
|
|
|
if (_glfwPlatformExtensionSupported("GLX_EXT_create_context_es2_profile")) |
|
|
|
|
_glfwLibrary.GLX.EXT_create_context_es2_profile = GL_TRUE; |
|
|
|
|
|
|
|
|
|
return GL_TRUE; |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
//========================================================================
|
|
|
|
|
// Terminate GLX
|
|
|
|
|
//========================================================================
|
|
|
|
|
|
|
|
|
|
void _glfwTerminateOpenGL(void) |
|
|
|
|
{ |
|
|
|
|
// Unload libGL.so if necessary
|
|
|
|
|
#ifdef _GLFW_DLOPEN_LIBGL |
|
|
|
|
if (_glfwLibrary.GLX.libGL != NULL) |
|
|
|
|
{ |
|
|
|
|
dlclose(_glfwLibrary.GLX.libGL); |
|
|
|
|
_glfwLibrary.GLX.libGL = NULL; |
|
|
|
|
} |
|
|
|
|
#endif |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
//========================================================================
|
|
|
|
|
// Prepare for creation of the OpenGL context
|
|
|
|
|
//========================================================================
|
|
|
|
|
|
|
|
|
|
int _glfwCreateContext(_GLFWwindow* window, |
|
|
|
|
const _GLFWwndconfig* wndconfig, |
|
|
|
|
const _GLFWfbconfig* fbconfig) |
|
|
|
|
{ |
|
|
|
|
_GLFWfbconfig closest; |
|
|
|
|
|
|
|
|
|
// Choose the best available fbconfig
|
|
|
|
|
{ |
|
|
|
|
unsigned int fbcount; |
|
|
|
|
_GLFWfbconfig* fbconfigs; |
|
|
|
|
const _GLFWfbconfig* result; |
|
|
|
|
|
|
|
|
|
fbconfigs = getFBConfigs(window, &fbcount); |
|
|
|
|
if (!fbconfigs) |
|
|
|
|
{ |
|
|
|
|
_glfwSetError(GLFW_PLATFORM_ERROR, |
|
|
|
|
"X11/GLX: No usable GLXFBConfigs found"); |
|
|
|
|
return GL_FALSE; |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
result = _glfwChooseFBConfig(fbconfig, fbconfigs, fbcount); |
|
|
|
|
if (!result) |
|
|
|
|
{ |
|
|
|
|
_glfwSetError(GLFW_PLATFORM_ERROR, |
|
|
|
|
"X11/GLX: No GLXFBConfig matched the criteria"); |
|
|
|
|
|
|
|
|
|
free(fbconfigs); |
|
|
|
|
return GL_FALSE; |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
closest = *result; |
|
|
|
|
free(fbconfigs); |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
return createContext(window, wndconfig, closest.platformID); |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
//========================================================================
|
|
|
|
|
// Destroy the OpenGL context
|
|
|
|
|
//========================================================================
|
|
|
|
|
|
|
|
|
|
void _glfwDestroyContext(_GLFWwindow* window) |
|
|
|
|
{ |
|
|
|
|
if (window->GLX.visual) |
|
|
|
|
{ |
|
|
|
|
XFree(window->GLX.visual); |
|
|
|
|
window->GLX.visual = NULL; |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
if (window->GLX.context) |
|
|
|
|
{ |
|
|
|
|
// Release and destroy the context
|
|
|
|
|
glXMakeCurrent(_glfwLibrary.X11.display, None, NULL); |
|
|
|
|
glXDestroyContext(_glfwLibrary.X11.display, window->GLX.context); |
|
|
|
|
window->GLX.context = NULL; |
|
|
|
|
} |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
//========================================================================
|
|
|
|
|
// Return the X visual associated with the specified context
|
|
|
|
|
//========================================================================
|
|
|
|
|
|
|
|
|
|
XVisualInfo* _glfwGetContextVisual(_GLFWwindow* window) |
|
|
|
|
{ |
|
|
|
|
return window->GLX.visual; |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
//========================================================================
|
|
|
|
|
// Make the OpenGL context associated with the specified window current
|
|
|
|
|
//========================================================================
|
|
|
|
@ -75,14 +713,14 @@ void _glfwPlatformSwapInterval(int interval) |
|
|
|
|
{ |
|
|
|
|
_GLFWwindow* window = _glfwLibrary.currentWindow; |
|
|
|
|
|
|
|
|
|
if (window->GLX.EXT_swap_control) |
|
|
|
|
if (_glfwLibrary.GLX.EXT_swap_control) |
|
|
|
|
{ |
|
|
|
|
window->GLX.SwapIntervalEXT(_glfwLibrary.X11.display, |
|
|
|
|
window->X11.handle, |
|
|
|
|
interval); |
|
|
|
|
_glfwLibrary.GLX.SwapIntervalEXT(_glfwLibrary.X11.display, |
|
|
|
|
window->X11.handle, |
|
|
|
|
interval); |
|
|
|
|
} |
|
|
|
|
else if (window->GLX.SGI_swap_control) |
|
|
|
|
window->GLX.SwapIntervalSGI(interval); |
|
|
|
|
else if (_glfwLibrary.GLX.SGI_swap_control) |
|
|
|
|
_glfwLibrary.GLX.SwapIntervalSGI(interval); |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
|
|
|
|
|