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Add GLFW_NO_API for creating context-less windows

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This commit is contained in:
Camilla Berglund
2015-06-18 14:03:02 +02:00
parent 0fda5b7b80
commit 496f559c9a
17 changed files with 285 additions and 191 deletions
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src/glx_context.c
+40 -21
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@@ -79,10 +79,6 @@ static GLFWbool chooseFBConfig(const _GLFWfbconfig* desired, GLXFBConfig* result
const GLXFBConfig n = nativeConfigs[i];
_GLFWfbconfig* u = usableConfigs + usableCount;
// Only consider GLXFBConfigs with associated visuals
if (!getFBConfigAttrib(n, GLX_VISUAL_ID))
continue;
// Only consider RGBA GLXFBConfigs
if (!(getFBConfigAttrib(n, GLX_RENDER_TYPE) & GLX_RGBA_BIT))
continue;
@@ -192,12 +188,12 @@ int _glfwInitContextAPI(void)
dlsym(_glfw.glx.handle, "glXQueryExtensionsString");
_glfw.glx.CreateNewContext =
dlsym(_glfw.glx.handle, "glXCreateNewContext");
_glfw.glx.GetVisualFromFBConfig =
dlsym(_glfw.glx.handle, "glXGetVisualFromFBConfig");
_glfw.glx.GetProcAddress =
dlsym(_glfw.glx.handle, "glXGetProcAddress");
_glfw.glx.GetProcAddressARB =
dlsym(_glfw.glx.handle, "glXGetProcAddressARB");
_glfw.glx.GetVisualFromFBConfig =
dlsym(_glfw.glx.handle, "glXGetVisualFromFBConfig");
if (!_glfw_glXQueryExtension(_glfw.x11.display,
&_glfw.glx.errorBase,
@@ -326,15 +322,6 @@ int _glfwCreateContext(_GLFWwindow* window,
return GLFW_FALSE;
}
window->glx.visual = _glfw_glXGetVisualFromFBConfig(_glfw.x11.display,
native);
if (!window->glx.visual)
{
_glfwInputError(GLFW_PLATFORM_ERROR,
"GLX: Failed to retrieve visual for GLXFBConfig");
return GLFW_FALSE;
}
if (ctxconfig->api == GLFW_OPENGL_ES_API)
{
if (!_glfw.glx.ARB_create_context ||
@@ -485,12 +472,6 @@ int _glfwCreateContext(_GLFWwindow* window,
//
void _glfwDestroyContext(_GLFWwindow* window)
{
if (window->glx.visual)
{
XFree(window->glx.visual);
window->glx.visual = NULL;
}
if (window->glx.context)
{
_glfw_glXDestroyContext(_glfw.x11.display, window->glx.context);
@@ -498,6 +479,37 @@ void _glfwDestroyContext(_GLFWwindow* window)
}
}
// Returns the Visual and depth of the chosen GLXFBConfig
//
GLFWbool _glfwChooseVisual(const _GLFWctxconfig* ctxconfig,
const _GLFWfbconfig* fbconfig,
Visual** visual, int* depth)
{
GLXFBConfig native;
XVisualInfo* result;
if (!chooseFBConfig(fbconfig, &native))
{
_glfwInputError(GLFW_FORMAT_UNAVAILABLE,
"GLX: Failed to find a suitable GLXFBConfig");
return GLFW_FALSE;
}
result = _glfw_glXGetVisualFromFBConfig(_glfw.x11.display, native);
if (!result)
{
_glfwInputError(GLFW_PLATFORM_ERROR,
"GLX: Failed to retrieve Visual for GLXFBConfig");
return GLFW_FALSE;
}
*visual = result->visual;
*depth = result->depth;
XFree(result);
return GLFW_TRUE;
}
//////////////////////////////////////////////////////////////////////////
////// GLFW platform API //////
@@ -573,6 +585,13 @@ GLFWAPI GLXContext glfwGetGLXContext(GLFWwindow* handle)
{
_GLFWwindow* window = (_GLFWwindow*) handle;
_GLFW_REQUIRE_INIT_OR_RETURN(NULL);
if (window->context.api == GLFW_NO_API)
{
_glfwInputError(GLFW_NO_WINDOW_CONTEXT, NULL);
return NULL;
}
return window->glx.context;
}