GLFWAPI GLFWwindow* glfwCreateWindow(int width, int height,
const char* title,
GLFWmonitor* monitor,
GLFWwindow* share)
{
_GLFWfbconfig fbconfig;
_GLFWctxconfig ctxconfig;
_GLFWwndconfig wndconfig;
_GLFWwindow* window;
_GLFWwindow* previous;
_GLFW_REQUIRE_INIT_OR_RETURN(NULL);
if (width <= 0 || height <= 0)
{
_glfwInputError(GLFW_INVALID_VALUE, "Invalid window size");
return NULL;
}
// Set up desired framebuffer config
fbconfig.redBits = _glfw.hints.redBits;
fbconfig.greenBits = _glfw.hints.greenBits;
fbconfig.blueBits = _glfw.hints.blueBits;
fbconfig.alphaBits = _glfw.hints.alphaBits;
fbconfig.depthBits = _glfw.hints.depthBits;
fbconfig.stencilBits = _glfw.hints.stencilBits;
fbconfig.accumRedBits = _glfw.hints.accumRedBits;
fbconfig.accumGreenBits = _glfw.hints.accumGreenBits;
fbconfig.accumBlueBits = _glfw.hints.accumBlueBits;
fbconfig.accumAlphaBits = _glfw.hints.accumAlphaBits;
fbconfig.auxBuffers = _glfw.hints.auxBuffers;
fbconfig.stereo = _glfw.hints.stereo ? GL_TRUE : GL_FALSE;
fbconfig.samples = _glfw.hints.samples;
fbconfig.sRGB = _glfw.hints.sRGB;
fbconfig.doublebuffer = _glfw.hints.doublebuffer ? GL_TRUE : GL_FALSE;
fbconfig.alphaMask = _glfw.hints.alphaMask ? GL_TRUE : GL_FALSE;
// Set up desired window config
wndconfig.width = width;
wndconfig.height = height;
wndconfig.title = title;
wndconfig.resizable = _glfw.hints.resizable ? GL_TRUE : GL_FALSE;
wndconfig.visible = _glfw.hints.visible ? GL_TRUE : GL_FALSE;
wndconfig.decorated = _glfw.hints.decorated ? GL_TRUE : GL_FALSE;
wndconfig.focused = _glfw.hints.focused ? GL_TRUE : GL_FALSE;
wndconfig.autoIconify = _glfw.hints.autoIconify ? GL_TRUE : GL_FALSE;
wndconfig.floating = _glfw.hints.floating ? GL_TRUE : GL_FALSE;
wndconfig.monitor = (_GLFWmonitor*) monitor;
wndconfig.alphaMask = _glfw.hints.alphaMask ? GL_TRUE : GL_FALSE;
// Set up desired context config
ctxconfig.api = _glfw.hints.api;
ctxconfig.major = _glfw.hints.major;
ctxconfig.minor = _glfw.hints.minor;
ctxconfig.forward = _glfw.hints.forward ? GL_TRUE : GL_FALSE;
ctxconfig.debug = _glfw.hints.debug ? GL_TRUE : GL_FALSE;
ctxconfig.profile = _glfw.hints.profile;
ctxconfig.robustness = _glfw.hints.robustness;
ctxconfig.release = _glfw.hints.release;
ctxconfig.share = (_GLFWwindow*) share;
// Check the OpenGL bits of the window config
if (!_glfwIsValidContextConfig(&ctxconfig))
return NULL;
window = calloc(1, sizeof(_GLFWwindow));
window->next = _glfw.windowListHead;
_glfw.windowListHead = window;
if (wndconfig.monitor)
{
wndconfig.resizable = GL_TRUE;
wndconfig.visible = GL_TRUE;
wndconfig.focused = GL_TRUE;
// Set up desired video mode
window->videoMode.width = width;
window->videoMode.height = height;
window->videoMode.redBits = _glfw.hints.redBits;
window->videoMode.greenBits = _glfw.hints.greenBits;
window->videoMode.blueBits = _glfw.hints.blueBits;
window->videoMode.refreshRate = _glfw.hints.refreshRate;
}
// Transfer window hints that are persistent settings and not
// just initial states
window->monitor = wndconfig.monitor;
window->resizable = wndconfig.resizable;
window->decorated = wndconfig.decorated;
window->autoIconify = wndconfig.autoIconify;
window->floating = wndconfig.floating;
window->transparent = wndconfig.alphaMask;
window->cursorMode = GLFW_CURSOR_NORMAL;
// Save the currently current context so it can be restored later
previous = _glfwPlatformGetCurrentContext();
// Open the actual window and create its context
if (!_glfwPlatformCreateWindow(window, &wndconfig, &ctxconfig, &fbconfig))
{
glfwDestroyWindow((GLFWwindow*) window);
_glfwPlatformMakeContextCurrent(previous);
return NULL;
}
_glfwPlatformMakeContextCurrent(window);
// Retrieve the actual (as opposed to requested) context attributes
if (!_glfwRefreshContextAttribs(&ctxconfig))
{
glfwDestroyWindow((GLFWwindow*) window);
_glfwPlatformMakeContextCurrent(previous);
return NULL;
}
// Verify the context against the requested parameters
if (!_glfwIsValidContext(&ctxconfig))
{
glfwDestroyWindow((GLFWwindow*) window);
_glfwPlatformMakeContextCurrent(previous);
return NULL;
}
// Clearing the front buffer to black to avoid garbage pixels left over
// from previous uses of our bit of VRAM
glClear(GL_COLOR_BUFFER_BIT);
_glfwPlatformSwapBuffers(window);
// Restore the previously current context (or NULL)
_glfwPlatformMakeContextCurrent(previous);
if (wndconfig.monitor)
{
int width, height;
_glfwPlatformGetWindowSize(window, &width, &height);
window->cursorPosX = width / 2;
window->cursorPosY = height / 2;
_glfwPlatformSetCursorPos(window, window->cursorPosX, window->cursorPosY);
}
else
{
if (wndconfig.visible)
{
if (wndconfig.focused)
_glfwPlatformShowWindow(window);
else
_glfwPlatformUnhideWindow(window);
}
}
return (GLFWwindow*) window;
}
GLFWAPI GLFWwindow* glfwCreateWindow(int width, int height,
const char* title,
GLFWmonitor* monitor,
GLFWwindow* share)
{
_GLFWfbconfig fbconfig;
_GLFWctxconfig ctxconfig;
_GLFWwndconfig wndconfig;
_GLFWwindow* window;
_GLFWwindow* previous;
_GLFW_REQUIRE_INIT_OR_RETURN(NULL);
if (width <= 0 || height <= 0)
{
_glfwInputError(GLFW_INVALID_VALUE, "Invalid window size");
return NULL;
}
fbconfig = _glfw.hints.framebuffer;
ctxconfig = _glfw.hints.context;
wndconfig = _glfw.hints.window;
wndconfig.width = width;
wndconfig.height = height;
wndconfig.title = title;
wndconfig.monitor = (_GLFWmonitor*) monitor;
ctxconfig.share = (_GLFWwindow*) share;
if (ctxconfig.share)
{
if (ctxconfig.share->context.api == GLFW_NO_API)
{
_glfwInputError(GLFW_NO_WINDOW_CONTEXT, NULL);
return NULL;
}
}
if (wndconfig.monitor)
{
wndconfig.resizable = GLFW_TRUE;
wndconfig.visible = GLFW_TRUE;
wndconfig.focused = GLFW_TRUE;
}
if (!_glfwIsValidContextConfig(&ctxconfig))
return NULL;
window = calloc(1, sizeof(_GLFWwindow));
window->next = _glfw.windowListHead;
_glfw.windowListHead = window;
window->videoMode.width = width;
window->videoMode.height = height;
window->videoMode.redBits = fbconfig.redBits;
window->videoMode.greenBits = fbconfig.greenBits;
window->videoMode.blueBits = fbconfig.blueBits;
window->videoMode.refreshRate = _glfw.hints.refreshRate;
window->monitor = wndconfig.monitor;
window->resizable = wndconfig.resizable;
window->decorated = wndconfig.decorated;
window->autoIconify = wndconfig.autoIconify;
window->floating = wndconfig.floating;
window->cursorMode = GLFW_CURSOR_NORMAL;
// Save the currently current context so it can be restored later
previous = _glfwPlatformGetCurrentContext();
// Open the actual window and create its context
if (!_glfwPlatformCreateWindow(window, &wndconfig, &ctxconfig, &fbconfig))
{
glfwDestroyWindow((GLFWwindow*) window);
_glfwPlatformMakeContextCurrent(previous);
return NULL;
}
if (ctxconfig.api != GLFW_NO_API)
{
_glfwPlatformMakeContextCurrent(window);
// Retrieve the actual (as opposed to requested) context attributes
if (!_glfwRefreshContextAttribs(&ctxconfig))
{
glfwDestroyWindow((GLFWwindow*) window);
_glfwPlatformMakeContextCurrent(previous);
return NULL;
}
// Verify the context against the requested parameters
if (!_glfwIsValidContext(&ctxconfig))
{
glfwDestroyWindow((GLFWwindow*) window);
_glfwPlatformMakeContextCurrent(previous);
return NULL;
}
// Restore the previously current context (or NULL)
_glfwPlatformMakeContextCurrent(previous);
}
if (wndconfig.monitor)
{
int width, height;
_glfwPlatformGetWindowSize(window, &width, &height);
window->cursorPosX = width / 2;
window->cursorPosY = height / 2;
_glfwPlatformSetCursorPos(window, window->cursorPosX, window->cursorPosY);
}
else
{
if (wndconfig.visible)
{
if (wndconfig.focused)
_glfwPlatformShowWindow(window);
else
_glfwPlatformUnhideWindow(window);
}
}
return (GLFWwindow*) window;
}
