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glfw/src/x11_opengl.c

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Initial import of 2.7 Lite.
2010-09-07 17:34:51 +02:00
//========================================================================
Purged references to GLFW as a framework.
2011-03-06 01:46:39 +01:00
// GLFW - An OpenGL library
Initial import of 2.7 Lite.
2010-09-07 17:34:51 +02:00
// Platform: X11/GLX
Updated API version.
2010-09-07 17:41:26 +02:00
// API version: 3.0
Initial import of 2.7 Lite.
2010-09-07 17:34:51 +02:00
// WWW: http://www.glfw.org/
//------------------------------------------------------------------------
// Copyright (c) 2002-2006 Marcus Geelnard
// Copyright (c) 2006-2010 Camilla Berglund <elmindreda@elmindreda.org>
//
// This software is provided 'as-is', without any express or implied
// warranty. In no event will the authors be held liable for any damages
// arising from the use of this software.
//
// Permission is granted to anyone to use this software for any purpose,
// including commercial applications, and to alter it and redistribute it
// freely, subject to the following restrictions:
//
// 1. The origin of this software must not be misrepresented; you must not
// claim that you wrote the original software. If you use this software
// in a product, an acknowledgment in the product documentation would
// be appreciated but is not required.
//
// 2. Altered source versions must be plainly marked as such, and must not
// be misrepresented as being the original software.
//
// 3. This notice may not be removed or altered from any source
// distribution.
//
//========================================================================
#include "internal.h"
Moved the majority of GLX code into opengl module.
2012-04-23 12:48:57 +02:00
#include <stdlib.h>
Initial import of 2.7 Lite.
2010-09-07 17:34:51 +02:00
Removed declarations made superfluous by our glxext.h header.
2012-02-01 22:00:07 +01:00
// This is the only glXGetProcAddress variant not declared by glxext.h
Formatting pass (no code changes).
2010-09-08 15:58:43 +02:00
void (*glXGetProcAddressEXT(const GLubyte* procName))();
Initial import of 2.7 Lite.
2010-09-07 17:34:51 +02:00
Moved the majority of GLX code into opengl module.
2012-04-23 12:48:57 +02:00
//========================================================================
// 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;
Made GLX extension management global instead of per-window.
2012-04-23 13:08:34 +02:00
if (_glfwLibrary.GLX.SGIX_fbconfig)
Moved the majority of GLX code into opengl module.
2012-04-23 12:48:57 +02:00
{
Made GLX extension management global instead of per-window.
2012-04-23 13:08:34 +02:00
_glfwLibrary.GLX.GetFBConfigAttribSGIX(_glfwLibrary.X11.display,
fbconfig, attrib, &value);
Moved the majority of GLX code into opengl module.
2012-04-23 12:48:57 +02:00
}
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)
{
Made GLX extension management global instead of per-window.
2012-04-23 13:08:34 +02:00
if (!_glfwLibrary.GLX.SGIX_fbconfig)
Moved the majority of GLX code into opengl module.
2012-04-23 12:48:57 +02:00
{
_glfwSetError(GLFW_OPENGL_UNAVAILABLE,
"X11/GLX: GLXFBConfig support not found");
return NULL;
}
}
Made GLX extension management global instead of per-window.
2012-04-23 13:08:34 +02:00
if (_glfwLibrary.GLX.SGIX_fbconfig)
Moved the majority of GLX code into opengl module.
2012-04-23 12:48:57 +02:00
{
Made GLX extension management global instead of per-window.
2012-04-23 13:08:34 +02:00
fbconfigs = _glfwLibrary.GLX.ChooseFBConfigSGIX(_glfwLibrary.X11.display,
_glfwLibrary.X11.screen,
NULL,
&count);
Moved the majority of GLX code into opengl module.
2012-04-23 12:48:57 +02:00
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);
Made GLX extension management global instead of per-window.
2012-04-23 13:08:34 +02:00
if (_glfwLibrary.GLX.ARB_multisample)
Moved the majority of GLX code into opengl module.
2012-04-23 12:48:57 +02:00
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;
}
//========================================================================
// 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;
}
//========================================================================
// Read back framebuffer parameters from the context
//========================================================================
static void refreshContextParams(_GLFWwindow* window, GLXFBConfigID fbconfigID)
{
int dummy;
GLXFBConfig* fbconfig;
int attribs[] = { GLX_FBCONFIG_ID, fbconfigID, None };
Made GLX extension management global instead of per-window.
2012-04-23 13:08:34 +02:00
if (_glfwLibrary.GLX.SGIX_fbconfig)
Moved the majority of GLX code into opengl module.
2012-04-23 12:48:57 +02:00
{
Made GLX extension management global instead of per-window.
2012-04-23 13:08:34 +02:00
fbconfig = _glfwLibrary.GLX.ChooseFBConfigSGIX(_glfwLibrary.X11.display,
_glfwLibrary.X11.screen,
attribs,
&dummy);
Moved the majority of GLX code into opengl module.
2012-04-23 12:48:57 +02:00
}
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
_glfwSetError(GLFW_PLATFORM_ERROR, "X11/GLX: 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
Made GLX extension management global instead of per-window.
2012-04-23 13:08:34 +02:00
if (_glfwLibrary.GLX.ARB_multisample)
Moved the majority of GLX code into opengl module.
2012-04-23 12:48:57 +02:00
window->samples = getFBConfigAttrib(window, *fbconfig, GLX_SAMPLES);
else
window->samples = 0;
XFree(fbconfig);
}
//========================================================================
// Create the actual 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);
Made GLX extension management global instead of per-window.
2012-04-23 13:08:34 +02:00
if (_glfwLibrary.GLX.SGIX_fbconfig)
Moved the majority of GLX code into opengl module.
2012-04-23 12:48:57 +02:00
{
Made GLX extension management global instead of per-window.
2012-04-23 13:08:34 +02:00
fbconfig = _glfwLibrary.GLX.ChooseFBConfigSGIX(_glfwLibrary.X11.display,
_glfwLibrary.X11.screen,
attribs,
&dummy);
Moved the majority of GLX code into opengl module.
2012-04-23 12:48:57 +02:00
}
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
Made GLX extension management global instead of per-window.
2012-04-23 13:08:34 +02:00
if (_glfwLibrary.GLX.SGIX_fbconfig)
Moved the majority of GLX code into opengl module.
2012-04-23 12:48:57 +02:00
{
Made GLX extension management global instead of per-window.
2012-04-23 13:08:34 +02:00
window->GLX.visual = _glfwLibrary.GLX.GetVisualFromFBConfigSGIX(_glfwLibrary.X11.display,
*fbconfig);
Moved the majority of GLX code into opengl module.
2012-04-23 12:48:57 +02:00
}
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;
}
Made GLX extension management global instead of per-window.
2012-04-23 13:08:34 +02:00
if (_glfwLibrary.GLX.ARB_create_context)
Moved the majority of GLX code into opengl module.
2012-04-23 12:48:57 +02:00
{
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;
Made GLX extension management global instead of per-window.
2012-04-23 13:08:34 +02:00
if (!_glfwLibrary.GLX.ARB_create_context_profile)
Moved the majority of GLX code into opengl module.
2012-04-23 12:48:57 +02:00
{
_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 &&
Made GLX extension management global instead of per-window.
2012-04-23 13:08:34 +02:00
!_glfwLibrary.GLX.EXT_create_context_es2_profile)
Moved the majority of GLX code into opengl module.
2012-04-23 12:48:57 +02:00
{
_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;
Made GLX extension management global instead of per-window.
2012-04-23 13:08:34 +02:00
if (!_glfwLibrary.GLX.ARB_create_context_robustness)
Moved the majority of GLX code into opengl module.
2012-04-23 12:48:57 +02:00
{
_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 =
Made GLX extension management global instead of per-window.
2012-04-23 13:08:34 +02:00
_glfwLibrary.GLX.CreateContextAttribsARB(_glfwLibrary.X11.display,
*fbconfig,
share,
True,
attribs);
Moved the majority of GLX code into opengl module.
2012-04-23 12:48:57 +02:00
// We are done, so unset the error handler again (see above)
XSetErrorHandler(NULL);
}
else
{
Made GLX extension management global instead of per-window.
2012-04-23 13:08:34 +02:00
if (_glfwLibrary.GLX.SGIX_fbconfig)
Moved the majority of GLX code into opengl module.
2012-04-23 12:48:57 +02:00
{
window->GLX.context =
Made GLX extension management global instead of per-window.
2012-04-23 13:08:34 +02:00
_glfwLibrary.GLX.CreateContextWithConfigSGIX(_glfwLibrary.X11.display,
*fbconfig,
GLX_RGBA_TYPE,
share,
True);
Moved the majority of GLX code into opengl module.
2012-04-23 12:48:57 +02:00
}
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
Formatting.
2010-09-15 16:44:43 +02:00
//////////////////////////////////////////////////////////////////////////
////// GLFW internal API //////
//////////////////////////////////////////////////////////////////////////
Initial import of 2.7 Lite.
2010-09-07 17:34:51 +02:00
Moved OpenGL init and terminate to opengl module.
2012-04-23 13:00:49 +02:00
//========================================================================
// 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;
}
Made GLX extension management global instead of per-window.
2012-04-23 13:08:34 +02:00
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;
Moved OpenGL init and terminate to opengl module.
2012-04-23 13:00:49 +02:00
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
}
Moved the majority of GLX code into opengl module.
2012-04-23 12:48:57 +02:00
//========================================================================
// 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.context)
{
// Release and destroy the context
glXMakeCurrent(_glfwLibrary.X11.display, None, NULL);
glXDestroyContext(_glfwLibrary.X11.display, window->GLX.context);
window->GLX.context = NULL;
}
}
Renamed context-related functions to more closely match underlying APIs.
2011-07-27 16:01:27 +02:00
//========================================================================
// Make the OpenGL context associated with the specified window current
//========================================================================
void _glfwPlatformMakeContextCurrent(_GLFWwindow* window)
{
if (window)
{
glXMakeCurrent(_glfwLibrary.X11.display,
window->X11.handle,
window->GLX.context);
}
else
glXMakeCurrent(_glfwLibrary.X11.display, None, NULL);
}
Moved OpenGL-related functions into *opengl files.
2011-03-04 14:25:12 +01:00
//========================================================================
// Swap OpenGL buffers
//========================================================================
void _glfwPlatformSwapBuffers(void)
{
glXSwapBuffers(_glfwLibrary.X11.display,
_glfwLibrary.currentWindow->X11.handle);
}
//========================================================================
// Set double buffering swap interval
//========================================================================
void _glfwPlatformSwapInterval(int interval)
{
_GLFWwindow* window = _glfwLibrary.currentWindow;
Made GLX extension management global instead of per-window.
2012-04-23 13:08:34 +02:00
if (_glfwLibrary.GLX.EXT_swap_control)
Moved OpenGL-related functions into *opengl files.
2011-03-04 14:25:12 +01:00
{
Made GLX extension management global instead of per-window.
2012-04-23 13:08:34 +02:00
_glfwLibrary.GLX.SwapIntervalEXT(_glfwLibrary.X11.display,
window->X11.handle,
interval);
Moved OpenGL-related functions into *opengl files.
2011-03-04 14:25:12 +01:00
}
Made GLX extension management global instead of per-window.
2012-04-23 13:08:34 +02:00
else if (_glfwLibrary.GLX.SGI_swap_control)
_glfwLibrary.GLX.SwapIntervalSGI(interval);
Moved OpenGL-related functions into *opengl files.
2011-03-04 14:25:12 +01:00
}
Initial import of 2.7 Lite.
2010-09-07 17:34:51 +02:00
//========================================================================
// Check if an OpenGL extension is available at runtime
//========================================================================
Formatting pass (no code changes).
2010-09-08 15:58:43 +02:00
int _glfwPlatformExtensionSupported(const char* extension)
Initial import of 2.7 Lite.
2010-09-07 17:34:51 +02:00
{
Formatting pass (no code changes).
2010-09-08 15:58:43 +02:00
const GLubyte* extensions;
Initial import of 2.7 Lite.
2010-09-07 17:34:51 +02:00
// Get list of GLX extensions
Initial pass for multi-window support.
2010-09-09 18:15:32 +02:00
extensions = (const GLubyte*) glXQueryExtensionsString(_glfwLibrary.X11.display,
Moved X11 screen and root from window to library struct (for now).
2010-09-09 23:37:50 +02:00
_glfwLibrary.X11.screen);
Formatting pass (no code changes).
2010-09-08 15:51:25 +02:00
if (extensions != NULL)
Initial import of 2.7 Lite.
2010-09-07 17:34:51 +02:00
{
Formatting pass (no code changes).
2010-09-08 15:51:25 +02:00
if (_glfwStringInExtensionString(extension, extensions))
Initial import of 2.7 Lite.
2010-09-07 17:34:51 +02:00
return GL_TRUE;
}
return GL_FALSE;
}
//========================================================================
// Get the function pointer to an OpenGL function
//========================================================================
Formatting pass (no code changes).
2010-09-08 15:58:43 +02:00
void* _glfwPlatformGetProcAddress(const char* procname)
Initial import of 2.7 Lite.
2010-09-07 17:34:51 +02:00
{
Formatting pass (no code changes).
2010-09-08 15:58:43 +02:00
return (void*) _glfw_glXGetProcAddress((const GLubyte*) procname);
Initial import of 2.7 Lite.
2010-09-07 17:34:51 +02:00
}
Added glfwCopyGLState.
2011-05-08 15:29:36 +02:00
//========================================================================
// Copies the specified OpenGL state categories from src to dst
//========================================================================
Renamed context-related functions to more closely match underlying APIs.
2011-07-27 16:01:27 +02:00
void _glfwPlatformCopyContext(_GLFWwindow* src, _GLFWwindow* dst, unsigned long mask)
Added glfwCopyGLState.
2011-05-08 15:29:36 +02:00
{
glXCopyContext(_glfwLibrary.X11.display,
src->GLX.context,
dst->GLX.context,
mask);
}
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