mirror of https://github.com/glfw/glfw.git
Moved the majority of GLX code into opengl module.
This commit is contained in:
Camilla Berglund
parent
1a99827432
commit
49dfbe86b2
550
src/x11_opengl.c
550
src/x11_opengl.c
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@ -30,15 +30,565 @@
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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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// Initialize GLX-specific extensions
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//========================================================================
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static void initGLXExtensions(_GLFWwindow* window)
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{
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if (_glfwPlatformExtensionSupported("GLX_EXT_swap_control"))
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{
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window->GLX.SwapIntervalEXT = (PFNGLXSWAPINTERVALEXTPROC)
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_glfwPlatformGetProcAddress("glXSwapIntervalEXT");
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if (window->GLX.SwapIntervalEXT)
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window->GLX.EXT_swap_control = GL_TRUE;
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}
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if (_glfwPlatformExtensionSupported("GLX_SGI_swap_control"))
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{
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window->GLX.SwapIntervalSGI = (PFNGLXSWAPINTERVALSGIPROC)
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_glfwPlatformGetProcAddress("glXSwapIntervalSGI");
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if (window->GLX.SwapIntervalSGI)
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window->GLX.SGI_swap_control = GL_TRUE;
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}
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if (_glfwPlatformExtensionSupported("GLX_SGIX_fbconfig"))
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{
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window->GLX.GetFBConfigAttribSGIX = (PFNGLXGETFBCONFIGATTRIBSGIXPROC)
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_glfwPlatformGetProcAddress("glXGetFBConfigAttribSGIX");
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window->GLX.ChooseFBConfigSGIX = (PFNGLXCHOOSEFBCONFIGSGIXPROC)
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_glfwPlatformGetProcAddress("glXChooseFBConfigSGIX");
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window->GLX.CreateContextWithConfigSGIX = (PFNGLXCREATECONTEXTWITHCONFIGSGIXPROC)
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_glfwPlatformGetProcAddress("glXCreateContextWithConfigSGIX");
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window->GLX.GetVisualFromFBConfigSGIX = (PFNGLXGETVISUALFROMFBCONFIGSGIXPROC)
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_glfwPlatformGetProcAddress("glXGetVisualFromFBConfigSGIX");
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if (window->GLX.GetFBConfigAttribSGIX &&
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window->GLX.ChooseFBConfigSGIX &&
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window->GLX.CreateContextWithConfigSGIX &&
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window->GLX.GetVisualFromFBConfigSGIX)
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{
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window->GLX.SGIX_fbconfig = GL_TRUE;
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}
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}
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if (_glfwPlatformExtensionSupported("GLX_ARB_multisample"))
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window->GLX.ARB_multisample = GL_TRUE;
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if (_glfwPlatformExtensionSupported("GLX_ARB_create_context"))
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{
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window->GLX.CreateContextAttribsARB = (PFNGLXCREATECONTEXTATTRIBSARBPROC)
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_glfwPlatformGetProcAddress("glXCreateContextAttribsARB");
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if (window->GLX.CreateContextAttribsARB)
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window->GLX.ARB_create_context = GL_TRUE;
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}
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if (_glfwPlatformExtensionSupported("GLX_ARB_create_context_robustness"))
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window->GLX.ARB_create_context_robustness = GL_TRUE;
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if (_glfwPlatformExtensionSupported("GLX_ARB_create_context_profile"))
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window->GLX.ARB_create_context_profile = GL_TRUE;
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if (_glfwPlatformExtensionSupported("GLX_EXT_create_context_es2_profile"))
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window->GLX.EXT_create_context_es2_profile = GL_TRUE;
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}
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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 (window->GLX.SGIX_fbconfig)
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{
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window->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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*found = 0;
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if (_glfwLibrary.GLX.majorVersion == 1 && _glfwLibrary.GLX.minorVersion < 3)
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{
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if (!window->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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if (window->GLX.SGIX_fbconfig)
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{
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fbconfigs = window->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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// Only consider window GLXFBConfigs
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continue;
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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 (window->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 (window->GLX.SGIX_fbconfig)
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{
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fbconfig = window->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 (window->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 (window->GLX.SGIX_fbconfig)
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{
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fbconfig = window->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 (window->GLX.SGIX_fbconfig)
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{
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window->GLX.visual = window->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 (window->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 (!window->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 &&
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!window->GLX.EXT_create_context_es2_profile)
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{
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_glfwSetError(GLFW_VERSION_UNAVAILABLE,
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"X11/GLX: OpenGL ES 2.x profile requested but "
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"GLX_EXT_create_context_es2_profile is unavailable");
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return GL_FALSE;
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}
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if (wndconfig->glProfile == GLFW_OPENGL_CORE_PROFILE)
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flags = GLX_CONTEXT_CORE_PROFILE_BIT_ARB;
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else if (wndconfig->glProfile == GLFW_OPENGL_COMPAT_PROFILE)
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flags = GLX_CONTEXT_COMPATIBILITY_PROFILE_BIT_ARB;
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else if (wndconfig->glProfile == GLFW_OPENGL_ES2_PROFILE)
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flags = GLX_CONTEXT_ES2_PROFILE_BIT_EXT;
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setGLXattrib(attribs, index, GLX_CONTEXT_PROFILE_MASK_ARB, flags);
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}
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if (wndconfig->glRobustness)
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{
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int strategy;
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if (!window->GLX.ARB_create_context_robustness)
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{
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_glfwSetError(GLFW_VERSION_UNAVAILABLE,
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"X11/GLX: An OpenGL robustness strategy was "
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"requested but GLX_ARB_create_context_robustness "
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"is unavailable");
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return GL_FALSE;
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}
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if (wndconfig->glRobustness == GLFW_OPENGL_NO_RESET_NOTIFICATION)
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strategy = GLX_NO_RESET_NOTIFICATION_ARB;
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else if (wndconfig->glRobustness == GLFW_OPENGL_LOSE_CONTEXT_ON_RESET)
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strategy = GLX_LOSE_CONTEXT_ON_RESET_ARB;
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setGLXattrib(attribs,
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index,
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GLX_CONTEXT_RESET_NOTIFICATION_STRATEGY_ARB,
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strategy);
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}
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setGLXattrib(attribs, index, None, None);
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// This is the only place we set an Xlib error handler, and we only do
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// it because glXCreateContextAttribsARB generates a BadMatch error if
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// the requested OpenGL version is unavailable (instead of a civilized
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// response like returning NULL)
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XSetErrorHandler(errorHandler);
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window->GLX.context =
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window->GLX.CreateContextAttribsARB(_glfwLibrary.X11.display,
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*fbconfig,
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share,
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True,
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attribs);
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// We are done, so unset the error handler again (see above)
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XSetErrorHandler(NULL);
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}
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else
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{
|
||||
if (window->GLX.SGIX_fbconfig)
|
||||
{
|
||||
window->GLX.context =
|
||||
window->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 //////
|
||||
//////////////////////////////////////////////////////////////////////////
|
||||
|
||||
//========================================================================
|
||||
// Prepare for creation of the OpenGL context
|
||||
//========================================================================
|
||||
|
||||
int _glfwCreateContext(_GLFWwindow* window,
|
||||
const _GLFWwndconfig* wndconfig,
|
||||
const _GLFWfbconfig* fbconfig)
|
||||
{
|
||||
_GLFWfbconfig closest;
|
||||
|
||||
initGLXExtensions(window);
|
||||
|
||||
// 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.context)
|
||||
{
|
||||
// Release and destroy the context
|
||||
glXMakeCurrent(_glfwLibrary.X11.display, None, NULL);
|
||||
glXDestroyContext(_glfwLibrary.X11.display, window->GLX.context);
|
||||
window->GLX.context = NULL;
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
//========================================================================
|
||||
// Make the OpenGL context associated with the specified window current
|
||||
//========================================================================
|
||||
|
|
|
|||
|
|
@ -113,7 +113,6 @@ typedef intptr_t GLFWintptr;
|
|||
//------------------------------------------------------------------------
|
||||
typedef struct _GLFWcontextGLX
|
||||
{
|
||||
GLXFBConfigID fbconfigID; // ID of selected GLXFBConfig
|
||||
GLXContext context; // OpenGL rendering context
|
||||
XVisualInfo* visual; // Visual for selected GLXFBConfig
|
||||
|
||||
|
|
@ -283,6 +282,12 @@ GLFWGLOBAL struct {
|
|||
// Time
|
||||
void _glfwInitTimer(void);
|
||||
|
||||
// OpenGL support
|
||||
int _glfwCreateContext(_GLFWwindow* window,
|
||||
const _GLFWwndconfig* wndconfig,
|
||||
const _GLFWfbconfig* fbconfig);
|
||||
void _glfwDestroyContext(_GLFWwindow* window);
|
||||
|
||||
// Fullscreen support
|
||||
int _glfwGetClosestVideoMode(int* width, int* height, int* rate);
|
||||
void _glfwSetVideoModeMODE(int mode, int rate);
|
||||
|
|
|
|||
520
src/x11_window.c
520
src/x11_window.c
|
|
@ -43,17 +43,6 @@
|
|||
#define Button6 6
|
||||
#define Button7 7
|
||||
|
||||
//========================================================================
|
||||
// Error handler for BadMatch errors when requesting context with
|
||||
// unavailable OpenGL versions using the GLX_ARB_create_context extension
|
||||
//========================================================================
|
||||
|
||||
static int errorHandler(Display *display, XErrorEvent* event)
|
||||
{
|
||||
return 0;
|
||||
}
|
||||
|
||||
|
||||
//========================================================================
|
||||
// Checks whether the event is a MapNotify for the specified window
|
||||
//========================================================================
|
||||
|
|
@ -98,417 +87,6 @@ static int translateChar(XKeyEvent* event)
|
|||
}
|
||||
|
||||
|
||||
//========================================================================
|
||||
// Returns the specified attribute of the specified GLXFBConfig
|
||||
// NOTE: Do not call this unless we have found GLX 1.3+ or GLX_SGIX_fbconfig
|
||||
//========================================================================
|
||||
|
||||
static int getFBConfigAttrib(_GLFWwindow* window, GLXFBConfig fbconfig, int attrib)
|
||||
{
|
||||
int value;
|
||||
|
||||
if (window->GLX.SGIX_fbconfig)
|
||||
{
|
||||
window->GLX.GetFBConfigAttribSGIX(_glfwLibrary.X11.display,
|
||||
fbconfig, attrib, &value);
|
||||
}
|
||||
else
|
||||
glXGetFBConfigAttrib(_glfwLibrary.X11.display, fbconfig, attrib, &value);
|
||||
|
||||
return value;
|
||||
}
|
||||
|
||||
|
||||
//========================================================================
|
||||
// Return a list of available and usable framebuffer configs
|
||||
//========================================================================
|
||||
|
||||
static _GLFWfbconfig* getFBConfigs(_GLFWwindow* window, unsigned int* found)
|
||||
{
|
||||
GLXFBConfig* fbconfigs;
|
||||
_GLFWfbconfig* result;
|
||||
int i, count = 0;
|
||||
|
||||
*found = 0;
|
||||
|
||||
if (_glfwLibrary.GLX.majorVersion == 1 && _glfwLibrary.GLX.minorVersion < 3)
|
||||
{
|
||||
if (!window->GLX.SGIX_fbconfig)
|
||||
{
|
||||
_glfwSetError(GLFW_OPENGL_UNAVAILABLE,
|
||||
"X11/GLX: GLXFBConfig support not found");
|
||||
return NULL;
|
||||
}
|
||||
}
|
||||
|
||||
if (window->GLX.SGIX_fbconfig)
|
||||
{
|
||||
fbconfigs = window->GLX.ChooseFBConfigSGIX(_glfwLibrary.X11.display,
|
||||
_glfwLibrary.X11.screen,
|
||||
NULL,
|
||||
&count);
|
||||
if (!count)
|
||||
{
|
||||
_glfwSetError(GLFW_OPENGL_UNAVAILABLE,
|
||||
"X11/GLX: No GLXFBConfigs returned");
|
||||
return NULL;
|
||||
}
|
||||
}
|
||||
else
|
||||
{
|
||||
fbconfigs = glXGetFBConfigs(_glfwLibrary.X11.display,
|
||||
_glfwLibrary.X11.screen,
|
||||
&count);
|
||||
if (!count)
|
||||
{
|
||||
_glfwSetError(GLFW_OPENGL_UNAVAILABLE,
|
||||
"X11/GLX: No GLXFBConfigs returned");
|
||||
return NULL;
|
||||
}
|
||||
}
|
||||
|
||||
result = (_GLFWfbconfig*) malloc(sizeof(_GLFWfbconfig) * count);
|
||||
if (!result)
|
||||
{
|
||||
_glfwSetError(GLFW_OUT_OF_MEMORY,
|
||||
"X11/GLX: Failed to allocate _GLFWfbconfig array");
|
||||
return NULL;
|
||||
}
|
||||
|
||||
for (i = 0; i < count; i++)
|
||||
{
|
||||
if (!getFBConfigAttrib(window, fbconfigs[i], GLX_DOUBLEBUFFER) ||
|
||||
!getFBConfigAttrib(window, fbconfigs[i], GLX_VISUAL_ID))
|
||||
{
|
||||
// Only consider double-buffered GLXFBConfigs with associated visuals
|
||||
continue;
|
||||
}
|
||||
|
||||
if (!(getFBConfigAttrib(window,
|
||||
fbconfigs[i],
|
||||
GLX_RENDER_TYPE) & GLX_RGBA_BIT))
|
||||
{
|
||||
// Only consider RGBA GLXFBConfigs
|
||||
continue;
|
||||
}
|
||||
|
||||
if (!(getFBConfigAttrib(window, fbconfigs[i], GLX_DRAWABLE_TYPE) & GLX_WINDOW_BIT))
|
||||
{
|
||||
// Only consider window GLXFBConfigs
|
||||
continue;
|
||||
}
|
||||
|
||||
result[*found].redBits = getFBConfigAttrib(window, fbconfigs[i], GLX_RED_SIZE);
|
||||
result[*found].greenBits = getFBConfigAttrib(window, fbconfigs[i], GLX_GREEN_SIZE);
|
||||
result[*found].blueBits = getFBConfigAttrib(window, fbconfigs[i], GLX_BLUE_SIZE);
|
||||
|
||||
result[*found].alphaBits = getFBConfigAttrib(window, fbconfigs[i], GLX_ALPHA_SIZE);
|
||||
result[*found].depthBits = getFBConfigAttrib(window, fbconfigs[i], GLX_DEPTH_SIZE);
|
||||
result[*found].stencilBits = getFBConfigAttrib(window, fbconfigs[i], GLX_STENCIL_SIZE);
|
||||
|
||||
result[*found].accumRedBits = getFBConfigAttrib(window, fbconfigs[i], GLX_ACCUM_RED_SIZE);
|
||||
result[*found].accumGreenBits = getFBConfigAttrib(window, fbconfigs[i], GLX_ACCUM_GREEN_SIZE);
|
||||
result[*found].accumBlueBits = getFBConfigAttrib(window, fbconfigs[i], GLX_ACCUM_BLUE_SIZE);
|
||||
result[*found].accumAlphaBits = getFBConfigAttrib(window, fbconfigs[i], GLX_ACCUM_ALPHA_SIZE);
|
||||
|
||||
result[*found].auxBuffers = getFBConfigAttrib(window, fbconfigs[i], GLX_AUX_BUFFERS);
|
||||
result[*found].stereo = getFBConfigAttrib(window, fbconfigs[i], GLX_STEREO);
|
||||
|
||||
if (window->GLX.ARB_multisample)
|
||||
result[*found].samples = getFBConfigAttrib(window, fbconfigs[i], GLX_SAMPLES);
|
||||
else
|
||||
result[*found].samples = 0;
|
||||
|
||||
result[*found].platformID = (GLFWintptr) getFBConfigAttrib(window, fbconfigs[i], GLX_FBCONFIG_ID);
|
||||
|
||||
(*found)++;
|
||||
}
|
||||
|
||||
XFree(fbconfigs);
|
||||
|
||||
return result;
|
||||
}
|
||||
|
||||
|
||||
//========================================================================
|
||||
// Create the OpenGL context
|
||||
//========================================================================
|
||||
|
||||
#define setGLXattrib(attribs, index, attribName, attribValue) \
|
||||
attribs[index++] = attribName; \
|
||||
attribs[index++] = attribValue;
|
||||
|
||||
static int createContext(_GLFWwindow* window,
|
||||
const _GLFWwndconfig* wndconfig,
|
||||
GLXFBConfigID fbconfigID)
|
||||
{
|
||||
int attribs[40];
|
||||
int dummy, index;
|
||||
GLXFBConfig* fbconfig;
|
||||
GLXContext share = NULL;
|
||||
|
||||
if (wndconfig->share)
|
||||
share = wndconfig->share->GLX.context;
|
||||
|
||||
// Retrieve the previously selected GLXFBConfig
|
||||
{
|
||||
index = 0;
|
||||
|
||||
setGLXattrib(attribs, index, GLX_FBCONFIG_ID, (int) fbconfigID);
|
||||
setGLXattrib(attribs, index, None, None);
|
||||
|
||||
if (window->GLX.SGIX_fbconfig)
|
||||
{
|
||||
fbconfig = window->GLX.ChooseFBConfigSGIX(_glfwLibrary.X11.display,
|
||||
_glfwLibrary.X11.screen,
|
||||
attribs,
|
||||
&dummy);
|
||||
}
|
||||
else
|
||||
{
|
||||
fbconfig = glXChooseFBConfig(_glfwLibrary.X11.display,
|
||||
_glfwLibrary.X11.screen,
|
||||
attribs,
|
||||
&dummy);
|
||||
}
|
||||
|
||||
if (fbconfig == NULL)
|
||||
{
|
||||
_glfwSetError(GLFW_PLATFORM_ERROR,
|
||||
"X11/GLX: Failed to retrieve the selected GLXFBConfig");
|
||||
return GL_FALSE;
|
||||
}
|
||||
}
|
||||
|
||||
// Retrieve the corresponding visual
|
||||
if (window->GLX.SGIX_fbconfig)
|
||||
{
|
||||
window->GLX.visual = window->GLX.GetVisualFromFBConfigSGIX(_glfwLibrary.X11.display,
|
||||
*fbconfig);
|
||||
}
|
||||
else
|
||||
{
|
||||
window->GLX.visual = glXGetVisualFromFBConfig(_glfwLibrary.X11.display,
|
||||
*fbconfig);
|
||||
}
|
||||
|
||||
if (window->GLX.visual == NULL)
|
||||
{
|
||||
XFree(fbconfig);
|
||||
|
||||
_glfwSetError(GLFW_PLATFORM_ERROR,
|
||||
"X11/GLX: Failed to retrieve visual for GLXFBConfig");
|
||||
return GL_FALSE;
|
||||
}
|
||||
|
||||
if (window->GLX.ARB_create_context)
|
||||
{
|
||||
index = 0;
|
||||
|
||||
if (wndconfig->glMajor != 1 || wndconfig->glMinor != 0)
|
||||
{
|
||||
// Request an explicitly versioned context
|
||||
|
||||
setGLXattrib(attribs, index, GLX_CONTEXT_MAJOR_VERSION_ARB, wndconfig->glMajor);
|
||||
setGLXattrib(attribs, index, GLX_CONTEXT_MINOR_VERSION_ARB, wndconfig->glMinor);
|
||||
}
|
||||
|
||||
if (wndconfig->glForward || wndconfig->glDebug || wndconfig->glRobustness)
|
||||
{
|
||||
int flags = 0;
|
||||
|
||||
if (wndconfig->glForward)
|
||||
flags |= GLX_CONTEXT_FORWARD_COMPATIBLE_BIT_ARB;
|
||||
|
||||
if (wndconfig->glDebug)
|
||||
flags |= GLX_CONTEXT_DEBUG_BIT_ARB;
|
||||
|
||||
if (wndconfig->glRobustness)
|
||||
flags |= GLX_CONTEXT_ROBUST_ACCESS_BIT_ARB;
|
||||
|
||||
setGLXattrib(attribs, index, GLX_CONTEXT_FLAGS_ARB, flags);
|
||||
}
|
||||
|
||||
if (wndconfig->glProfile)
|
||||
{
|
||||
int flags = 0;
|
||||
|
||||
if (!window->GLX.ARB_create_context_profile)
|
||||
{
|
||||
_glfwSetError(GLFW_VERSION_UNAVAILABLE,
|
||||
"X11/GLX: An OpenGL profile requested but "
|
||||
"GLX_ARB_create_context_profile is unavailable");
|
||||
return GL_FALSE;
|
||||
}
|
||||
|
||||
if (wndconfig->glProfile == GLFW_OPENGL_ES2_PROFILE &&
|
||||
!window->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 (!window->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 =
|
||||
window->GLX.CreateContextAttribsARB(_glfwLibrary.X11.display,
|
||||
*fbconfig,
|
||||
share,
|
||||
True,
|
||||
attribs);
|
||||
|
||||
// We are done, so unset the error handler again (see above)
|
||||
XSetErrorHandler(NULL);
|
||||
}
|
||||
else
|
||||
{
|
||||
if (window->GLX.SGIX_fbconfig)
|
||||
{
|
||||
window->GLX.context =
|
||||
window->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;
|
||||
}
|
||||
|
||||
window->GLX.fbconfigID = fbconfigID;
|
||||
|
||||
return GL_TRUE;
|
||||
}
|
||||
|
||||
#undef setGLXattrib
|
||||
|
||||
|
||||
//========================================================================
|
||||
// Initialize GLX-specific extensions
|
||||
//========================================================================
|
||||
|
||||
static void initGLXExtensions(_GLFWwindow* window)
|
||||
{
|
||||
if (_glfwPlatformExtensionSupported("GLX_EXT_swap_control"))
|
||||
{
|
||||
window->GLX.SwapIntervalEXT = (PFNGLXSWAPINTERVALEXTPROC)
|
||||
_glfwPlatformGetProcAddress("glXSwapIntervalEXT");
|
||||
|
||||
if (window->GLX.SwapIntervalEXT)
|
||||
window->GLX.EXT_swap_control = GL_TRUE;
|
||||
}
|
||||
|
||||
if (_glfwPlatformExtensionSupported("GLX_SGI_swap_control"))
|
||||
{
|
||||
window->GLX.SwapIntervalSGI = (PFNGLXSWAPINTERVALSGIPROC)
|
||||
_glfwPlatformGetProcAddress("glXSwapIntervalSGI");
|
||||
|
||||
if (window->GLX.SwapIntervalSGI)
|
||||
window->GLX.SGI_swap_control = GL_TRUE;
|
||||
}
|
||||
|
||||
if (_glfwPlatformExtensionSupported("GLX_SGIX_fbconfig"))
|
||||
{
|
||||
window->GLX.GetFBConfigAttribSGIX = (PFNGLXGETFBCONFIGATTRIBSGIXPROC)
|
||||
_glfwPlatformGetProcAddress("glXGetFBConfigAttribSGIX");
|
||||
window->GLX.ChooseFBConfigSGIX = (PFNGLXCHOOSEFBCONFIGSGIXPROC)
|
||||
_glfwPlatformGetProcAddress("glXChooseFBConfigSGIX");
|
||||
window->GLX.CreateContextWithConfigSGIX = (PFNGLXCREATECONTEXTWITHCONFIGSGIXPROC)
|
||||
_glfwPlatformGetProcAddress("glXCreateContextWithConfigSGIX");
|
||||
window->GLX.GetVisualFromFBConfigSGIX = (PFNGLXGETVISUALFROMFBCONFIGSGIXPROC)
|
||||
_glfwPlatformGetProcAddress("glXGetVisualFromFBConfigSGIX");
|
||||
|
||||
if (window->GLX.GetFBConfigAttribSGIX &&
|
||||
window->GLX.ChooseFBConfigSGIX &&
|
||||
window->GLX.CreateContextWithConfigSGIX &&
|
||||
window->GLX.GetVisualFromFBConfigSGIX)
|
||||
{
|
||||
window->GLX.SGIX_fbconfig = GL_TRUE;
|
||||
}
|
||||
}
|
||||
|
||||
if (_glfwPlatformExtensionSupported("GLX_ARB_multisample"))
|
||||
window->GLX.ARB_multisample = GL_TRUE;
|
||||
|
||||
if (_glfwPlatformExtensionSupported("GLX_ARB_create_context"))
|
||||
{
|
||||
window->GLX.CreateContextAttribsARB = (PFNGLXCREATECONTEXTATTRIBSARBPROC)
|
||||
_glfwPlatformGetProcAddress("glXCreateContextAttribsARB");
|
||||
|
||||
if (window->GLX.CreateContextAttribsARB)
|
||||
window->GLX.ARB_create_context = GL_TRUE;
|
||||
}
|
||||
|
||||
if (_glfwPlatformExtensionSupported("GLX_ARB_create_context_robustness"))
|
||||
window->GLX.ARB_create_context_robustness = GL_TRUE;
|
||||
|
||||
if (_glfwPlatformExtensionSupported("GLX_ARB_create_context_profile"))
|
||||
window->GLX.ARB_create_context_profile = GL_TRUE;
|
||||
|
||||
if (_glfwPlatformExtensionSupported("GLX_EXT_create_context_es2_profile"))
|
||||
window->GLX.EXT_create_context_es2_profile = GL_TRUE;
|
||||
}
|
||||
|
||||
|
||||
//========================================================================
|
||||
// Create the X11 window (and its colormap)
|
||||
//========================================================================
|
||||
|
|
@ -1339,42 +917,10 @@ int _glfwPlatformOpenWindow(_GLFWwindow* window,
|
|||
const _GLFWwndconfig* wndconfig,
|
||||
const _GLFWfbconfig* fbconfig)
|
||||
{
|
||||
_GLFWfbconfig closest;
|
||||
|
||||
window->refreshRate = wndconfig->refreshRate;
|
||||
window->resizable = wndconfig->resizable;
|
||||
|
||||
initGLXExtensions(window);
|
||||
|
||||
// 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);
|
||||
}
|
||||
|
||||
if (!createContext(window, wndconfig, (GLXFBConfigID) closest.platformID))
|
||||
if (!_glfwCreateContext(window, wndconfig, fbconfig))
|
||||
return GL_FALSE;
|
||||
|
||||
if (!createWindow(window, wndconfig))
|
||||
|
|
@ -1431,13 +977,7 @@ void _glfwPlatformCloseWindow(_GLFWwindow* window)
|
|||
if (window->mode == GLFW_FULLSCREEN)
|
||||
leaveFullscreenMode(window);
|
||||
|
||||
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;
|
||||
}
|
||||
_glfwDestroyContext(window);
|
||||
|
||||
if (window->GLX.visual)
|
||||
{
|
||||
|
|
@ -1604,8 +1144,6 @@ void _glfwPlatformRestoreWindow(_GLFWwindow* window)
|
|||
|
||||
void _glfwPlatformRefreshWindowParams(void)
|
||||
{
|
||||
int dummy;
|
||||
GLXFBConfig* fbconfig;
|
||||
#if defined(_GLFW_HAS_XRANDR)
|
||||
XRRScreenConfiguration* sc;
|
||||
#endif /*_GLFW_HAS_XRANDR*/
|
||||
|
|
@ -1616,58 +1154,6 @@ void _glfwPlatformRefreshWindowParams(void)
|
|||
#endif /*_GLFW_HAS_XF86VIDMODE*/
|
||||
_GLFWwindow* window = _glfwLibrary.currentWindow;
|
||||
|
||||
int attribs[] = { GLX_FBCONFIG_ID, window->GLX.fbconfigID, None };
|
||||
|
||||
if (window->GLX.SGIX_fbconfig)
|
||||
{
|
||||
fbconfig = window->GLX.ChooseFBConfigSGIX(_glfwLibrary.X11.display,
|
||||
_glfwLibrary.X11.screen,
|
||||
attribs,
|
||||
&dummy);
|
||||
}
|
||||
else
|
||||
{
|
||||
fbconfig = glXChooseFBConfig(_glfwLibrary.X11.display,
|
||||
_glfwLibrary.X11.screen,
|
||||
attribs,
|
||||
&dummy);
|
||||
}
|
||||
|
||||
if (fbconfig == NULL)
|
||||
{
|
||||
// This should never ever happen
|
||||
// TODO: Flag this as an error and propagate up
|
||||
fprintf(stderr, "Cannot find known GLXFBConfig by ID. "
|
||||
"This cannot happen. Have a nice day.\n");
|
||||
abort();
|
||||
}
|
||||
|
||||
// There is no clear definition of an "accelerated" context on X11/GLX, and
|
||||
// true sounds better than false, so we hardcode true here
|
||||
window->accelerated = GL_TRUE;
|
||||
|
||||
window->redBits = getFBConfigAttrib(window, *fbconfig, GLX_RED_SIZE);
|
||||
window->greenBits = getFBConfigAttrib(window, *fbconfig, GLX_GREEN_SIZE);
|
||||
window->blueBits = getFBConfigAttrib(window, *fbconfig, GLX_BLUE_SIZE);
|
||||
|
||||
window->alphaBits = getFBConfigAttrib(window, *fbconfig, GLX_ALPHA_SIZE);
|
||||
window->depthBits = getFBConfigAttrib(window, *fbconfig, GLX_DEPTH_SIZE);
|
||||
window->stencilBits = getFBConfigAttrib(window, *fbconfig, GLX_STENCIL_SIZE);
|
||||
|
||||
window->accumRedBits = getFBConfigAttrib(window, *fbconfig, GLX_ACCUM_RED_SIZE);
|
||||
window->accumGreenBits = getFBConfigAttrib(window, *fbconfig, GLX_ACCUM_GREEN_SIZE);
|
||||
window->accumBlueBits = getFBConfigAttrib(window, *fbconfig, GLX_ACCUM_BLUE_SIZE);
|
||||
window->accumAlphaBits = getFBConfigAttrib(window, *fbconfig, GLX_ACCUM_ALPHA_SIZE);
|
||||
|
||||
window->auxBuffers = getFBConfigAttrib(window, *fbconfig, GLX_AUX_BUFFERS);
|
||||
window->stereo = getFBConfigAttrib(window, *fbconfig, GLX_STEREO) ? GL_TRUE : GL_FALSE;
|
||||
|
||||
// Get FSAA buffer sample count
|
||||
if (window->GLX.ARB_multisample)
|
||||
window->samples = getFBConfigAttrib(window, *fbconfig, GLX_SAMPLES);
|
||||
else
|
||||
window->samples = 0;
|
||||
|
||||
// Retrieve refresh rate if possible
|
||||
if (_glfwLibrary.X11.RandR.available)
|
||||
{
|
||||
|
|
@ -1694,8 +1180,6 @@ void _glfwPlatformRefreshWindowParams(void)
|
|||
// Zero means unknown according to the GLFW spec
|
||||
window->refreshRate = 0;
|
||||
}
|
||||
|
||||
XFree(fbconfig);
|
||||
}
|
||||
|
||||
|
||||
|
|
|
|||
Loading…
Reference in New Issue