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glfw.nim
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glfw.nim
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import std/tables
import std/options
from std/unicode import Rune
import glfw/wrapper
export wrapper.ContextCreationApi
export wrapper.ContextReleaseBehavior
export wrapper.ContextRobustness
export wrapper.Cursor
export wrapper.CursorMode
export wrapper.CursorShape
export wrapper.IconImage
export wrapper.IconImageObj
export wrapper.Key
export wrapper.KeyAction
export wrapper.ModifierKey
export wrapper.MouseButton
export wrapper.OpenglProfile
export wrapper.createCursor
export wrapper.createStandardCursor
export wrapper.destroyCursor
export wrapper.getProcAddress
export wrapper.mbLeft
export wrapper.mbMiddle
export wrapper.mbRight
export wrapper.pollEvents
export wrapper.postEmptyEvent
export wrapper.setCursor
export wrapper.swapBuffers
export wrapper.waitEvents
export wrapper.waitEventsTimeout
{.push warning[HoleEnumConv]:off.}
converter toInt32Tuple*(t: tuple[w,h: int]): tuple[w,h: int32] =
(t[0].int32, t[1].int32)
converter toInt32Tuple*(t: tuple[x,y: int]): tuple[x,y: int32] =
(t[0].int32, t[1].int32)
converter toInt32Tuple*(t: tuple[r,g,b,a: int]): tuple[r,g,b,a: Option[int32]] =
(some(t[0].int32), some(t[1].int32), some(t[2].int32), some(t[3].int32))
converter toInt32Tuple*(t: tuple[r,g,b,a, stencil, depth: int]):
tuple[r,g,b,a, stencil, depth: Option[int32]] =
(some(t[0].int32), some(t[1].int32), some(t[2].int32),
some(t[3].int32), some(t[4].int32), some(t[5].int32))
converter toInt32(h: wrapper.Hint): int32 =
h.int32
converter toOptionInt32*(v: Option[int]): Option[int32] =
if v.isSome: v.get.int32.some
else: int32.none
type
WindowHandle = wrapper.Window
WindowObj = object
handle: WindowHandle
windowPositionCb*: WindowPositionCb
windowSizeCb*: WindowSizeCb
windowCloseCb*: WindowCloseCb
windowRefreshCb*: WindowRefreshCb
windowFocusCb*: WindowFocusCb
windowMaximizeCb*: WindowMaximizeCb
windowIconifyCb*: WindowIconifyCb
windowContentScaleCb*: WindowContentScaleCb
framebufferSizeCb*: FramebufferSizeCb
mouseButtonCb*: MouseButtonCb
cursorPositionCb*: CursorPositionCb
cursorEnterCb*: CursorEnterCb
scrollCb*: ScrollCb
keyCb*: KeyCb
charCb*: CharCb
charModsCb*: CharModsCb
dropCb*: DropCb
Window* = ref WindowObj
WindowPositionCb* = proc(window: Window,
pos: tuple[x,y: int32]) {.closure.}
WindowSizeCb* = proc(window: Window, size: tuple[w,h: int32]) {.closure.}
WindowCloseCb* = proc(window: Window) {.closure.}
WindowRefreshCb* = proc(window: Window) {.closure.}
WindowFocusCb* = proc(window: Window, focus: bool) {.closure.}
WindowMaximizeCb* = proc(window: Window, iconified: bool)
WindowIconifyCb* = proc(window: Window, iconified: bool) {.closure.}
WindowContentScaleCb* = proc(window: Window, width, height: float) {.closure.}
FramebufferSizeCb* = proc(window: Window,
res: tuple[w,h: int32]) {.closure.}
MouseButtonCb* = proc(window: Window, button: MouseButton, pressed: bool,
modKeys: set[ModifierKey]) {.closure.}
CursorPositionCb* = proc(window: Window,
pos: tuple[x,y: float64]) {.closure.}
CursorEnterCb* = proc(window: Window, entered: bool) {.closure.}
ScrollCb* = proc(window: Window, offset: tuple[x,y: float64]) {.closure.}
KeyCb* = proc(window: Window, key: Key, scanCode: int32, action: KeyAction,
modKeys: set[ModifierKey]) {.closure.}
CharCb* = proc(window: Window, codePoint: Rune) {.closure.}
CharModsCb* = proc(window: Window, codepoint: Rune,
modkeys: set[ModifierKey]) {.closure.}
DropCb* = proc(window: Window, paths: PathDropInfo) {.closure.}
MonitorHandle = wrapper.Monitor
Monitor* = object
handle: MonitorHandle
PathDropInfo* = object
paths: cstringArray
len: int32
proc initPathDropInfo(paths: cstringArray, len: int32): PathDropInfo =
PathDropInfo(paths: paths, len: len)
proc len*(p: PathDropInfo): cint =
p.len
iterator items*(p: PathDropInfo): cstring =
for i in 0 .. p.len - 1:
yield p.paths[i]
iterator pairs*(p: PathDropInfo): (int32, cstring) =
for i in 0 .. p.len - 1:
yield (i, p.paths[i])
converter toHandle(m: Monitor): MonitorHandle = m.handle
converter toHandle(w: Window): WindowHandle = w.handle
proc initModifierKeySet(bitfield: int): set[ModifierKey] =
# XXX: This should not be necessary just because the enum type has
# non-consecutive elements.
let mods = [ModifierKey.mkShift, ModifierKey.mkCtrl, ModifierKey.mkAlt,
ModifierKey.mkSuper, ModifierKey.mkCapsLock,
ModifierKey.mkNumLock]
for m in mods:
let bit = (bitfield.int and m.int)
if bit != 0:
result.incl(bit.ModifierKey)
type
ErrorType* {.size: int32.sizeof.} = enum
getNoError = (0x00000000, "no error")
getUnknownError = (0x00000001, "unknown error")
getNotInitialized = (0x00010001, "not initialized")
getNoCurrentContext = (0x00010002, "no current context")
getInvalidEnum = (0x00010003, "invalid enum")
getInvalidValue = (0x00010004, "invalid value")
getOutOfMemory = (0x00010005, "out of memory")
getApiUnavailable = (0x00010006, "API unavailable")
getVersionUnavailable = (0x00010007, "version unavailable")
getPlatformError = (0x00010008, "platform error")
getFormatUnavailable = (0x00010009, "format unavailable")
getNoWindowContext = (0x0001000A, "no window context")
getCursorUnavailable = (0x0001000B, "cursor unavailable")
getFeatureUnavailable = (0x0001000C, "feature unavailable")
getFeatureUnimplemented = (0x0001000D, "feature unimplemented")
getPlatformUnavailable = (0x0001000E, "platform unavailable ")
var
gErrorCode = getNoError
gErrorMsg = ""
hasInitialized = false
type
GLFWError* = object of CatchableError
error*: ErrorType
proc `$`*(e: GLFWError): string = $e.error
proc getHandle*(w: Window): WindowHandle =
w.handle
proc fail(error = getUnknownError, msg: string = "", iff = true) =
if not iff:
return
var e = newException(GLFWError, if msg != "": msg else: $error)
gErrorCode = getNoError
gErrorMsg.setLen(0)
e.error = error
raise e
proc errorCheck =
if gErrorCode != getNoError:
fail(gErrorCode, gErrorMsg)
# This branch handles the case where 'init' has not been called,
# in which case an error callback has not been registered.
elif not hasInitialized:
fail(getNotInitialized, gErrorMsg)
proc failIf[T](val, equals: T): T =
result = val
if result == equals:
errorCheck()
# We can't raise an exception here, because that might mess up the GLFW stack.
proc errorCb(code: int32, msg: cstring) {.cdecl.} =
gErrorCode = ErrorType(code)
gErrorMsg = $msg
type
MonitorCb* = proc(monitor: Monitor, connected: bool) {.closure.}
JoystickCb* = proc(joystick: int32, connected: bool) {.closure.}
var
gMonitorCb: MonitorCb
gJoystickCb: JoystickCb
proc setMonitorCb*(cb: MonitorCb) =
gMonitorCb = cb
proc setJoystickCb*(cb: JoystickCb) =
gJoystickCb = cb
proc internalMonitorCb(handle: MonitorHandle, connection: int32) {.cdecl.} =
if not gMonitorCb.isNil:
let c = connection.MonitorConnection
case c
of mcConnected, mcDisconnected:
discard
gMonitorCb(Monitor(handle: handle), c == mcConnected)
proc internalJoystickCb(joy, connected: int32) {.cdecl.} =
if not gJoystickCb.isNil:
gJoystickCb(joy, connected.bool)
proc initialize* =
if hasInitialized:
return
discard wrapper.setErrorCallback(errorCb)
discard wrapper.init().failIf(0)
discard wrapper.setMonitorCallback(internalMonitorCb)
discard wrapper.setJoystickCallback(internalJoystickCb)
hasInitialized = true
proc terminate* =
wrapper.terminate()
hasInitialized = false
proc newMonitor*(handle: MonitorHandle): Monitor =
result.handle = handle
iterator monitors*: Monitor =
var count: int32
var handlesPtr = wrapper.getMonitors(count.addr).failIf(nil)
fail(iff = count <= 0)
var handles = cast[ptr array[10_000, MonitorHandle]](handlesPtr)
for i in 0 .. count - 1:
yield newMonitor(handles[i])
proc getPrimaryMonitor*: Monitor =
newMonitor(wrapper.getPrimaryMonitor().failIf(nil))
proc pos*(m: Monitor): tuple[x,y: int] =
var x,y: int32
wrapper.getMonitorPos(m, x.addr, y.addr)
(x.int, y.int)
proc workArea*(m: Monitor): tuple[x,y,w,h: int] =
var x,y,w,h: int32
wrapper.getMonitorWorkarea(m, x.addr, y.addr, w.addr, h.addr)
(x.int, y.int, w.int, h.int)
proc physicalSizeMM*(m: Monitor): tuple[w,h: int] =
var w,h: int32
wrapper.getMonitorPhysicalSize(m, w.addr, h.addr)
(w.int, h.int)
proc contentScale*(m: Monitor): tuple[xscale, yscale: float] =
var x,y: cfloat
wrapper.getMonitorContentScale(m, x.addr, y.addr)
(x.float, y.float)
proc name*(m: Monitor): cstring =
wrapper.getMonitorName(m).failIf(nil)
type
VideoMode* = object
size*: tuple[w,h: int]
bits*: tuple[r,g,b: int]
refreshRate*: int
converter toVideoMode(vm: wrapper.VideoMode): VideoMode =
VideoMode(
size: (vm.width.int, vm.height.int),
bits: (vm.redBits.int, vm.greenBits.int, vm.blueBits.int),
refreshRate: vm.refreshRate
)
iterator videoModes*(m: Monitor): VideoMode =
var n: int32
var modesPtr = wrapper.getVideoModes(m, n.addr).failIf(nil)
fail(iff = n <= 0)
var modes = cast[ptr array[10_000, wrapper.VideoMode]](modesPtr)
for i in 0 .. n - 1:
yield cast[VideoMode](modes[i])
proc videoMode*(m: Monitor): VideoMode =
cast[VideoMode](wrapper.getVideoMode(m).failIf(nil))
proc `gamma=`*(m: Monitor, gamma: float32) =
wrapper.setGamma(m, gamma.cfloat)
type
GammaRamp* = tuple[r,g,b: seq[uint16], size: int32]
GammaRampPtr* = ptr GammaRamp
proc `gammaRamp=`*(m: Monitor, ramp: GammaRamp) =
wrapper.setGammaRamp(m, cast[wrapper.GammaRamp](ramp.unsafeAddr))
proc gammaRamp*(m: Monitor): GammaRampPtr =
cast[GammaRampPtr](wrapper.getGammaRamp(m).failIf(nil))
const NoMonitor* = Monitor()
var gWindowTable = initTable[WindowHandle, Window]()
var
windowPositionCb: wrapper.Windowposfun
windowSizeCb: wrapper.Windowsizefun
windowCloseCb: wrapper.Windowclosefun
windowRefreshCb: wrapper.Windowrefreshfun
windowFocusCb: wrapper.Windowfocusfun
windowMaximizeCb: wrapper.Windowmaximizefun
windowIconifyCb: wrapper.Windowiconifyfun
windowContentScaleCb: wrapper.Windowcontentscalefun
framebufferSizeCb: wrapper.Framebuffersizefun
mouseButtonCb: wrapper.MouseButtonfun
cursorPositionCb: wrapper.Cursorposfun
cursorEnterCb: wrapper.Cursorenterfun
scrollCb: wrapper.Scrollfun
keyCb: wrapper.Keyfun
charCb: wrapper.Charfun
charModsCb: wrapper.Charmodsfun
dropCb: wrapper.Dropfun
type
OpenglVersion* = enum
glv10 = (0x100, "OpenGL 1.0")
glv11 = (0x110, "OpenGL 1.1")
glv12 = (0x120, "OpenGL 1.2")
glv121 = (0x121, "OpenGL 1.2.1")
glv13 = (0x130, "OpenGL 1.3")
glv14 = (0x140, "OpenGL 1.4")
glv15 = (0x150, "OpenGL 1.5")
glv20 = (0x200, "OpenGL 2.0")
glv21 = (0x210, "OpenGL 2.1")
glv30 = (0x300, "OpenGL 3.0")
glv31 = (0x310, "OpenGL 3.1")
glv32 = (0x320, "OpenGL 3.2")
glv33 = (0x330, "OpenGL 3.3")
glv40 = (0x400, "OpenGL 4.0")
glv41 = (0x410, "OpenGL 4.1")
glv42 = (0x420, "OpenGL 4.2")
glv43 = (0x430, "OpenGL 4.3")
glv44 = (0x440, "OpenGL 4.4")
glv45 = (0x450, "OpenGL 4.5")
glv46 = (0x460, "OpenGL 4.6")
OpenglEsVersion* = enum
glesv10 = (0x100, "OpenGL ES 1.0")
glesv11 = (0x110, "OpenGL ES 1.1")
glesv20 = (0x200, "OpenGL ES 2.0")
glesv30 = (0x300, "OpenGL ES 3.0")
glesv31 = (0x310, "OpenGL ES 3.1")
glesv32 = (0x320, "OpenGL ES 3.2")
proc shouldClose*(w: Window): bool =
wrapper.windowShouldClose(w).bool
proc `shouldClose=`*(w: Window, val: bool) =
wrapper.setWindowShouldClose(w, val.int32)
proc title*(w: Window): cstring =
wrapper.getWindowTitle(w)
proc `title=`*(w: Window, val: string) =
wrapper.setWindowTitle(w, val)
proc pos*(w: Window): tuple[x,y: int] =
var x,y: int32
wrapper.getWindowPos(w, x.addr, y.addr)
(x.int, y.int)
proc `pos=`*(w: Window, pos: tuple[x,y: int]) =
wrapper.setWindowPos(w, pos.x.int32, pos.y.int32)
proc size*(w: Window): tuple[w,h: int] =
var width, height: int32
wrapper.getWindowSize(w, width.addr, height.addr)
(width.int, height.int)
proc `size=`*(w: Window, size: tuple[w,h: int]) =
wrapper.setWindowSize(w, size.w.int32, size.h.int32)
proc framebufferSize*(w: Window): tuple[w,h: int] =
var width, height: int32
wrapper.getframebufferSize(w, width.addr, height.addr)
(width.int, height.int)
proc windowFrameSize*(w: Window): tuple[left, top, right, bottom: int] =
var left, top, right, bottom: int32
wrapper.getWindowFrameSize(w, left.addr, top.addr, right.addr, bottom.addr)
(left.int, top.int, right.int, bottom.int)
template windowOp(name: untyped) =
proc name*(w: Window) =
`name Window`(w)
windowOp(iconify)
windowOp(restore)
windowOp(show)
windowOp(hide)
windowOp(focus)
windowOp(maximize)
template defWindowAttrib(name: untyped, id: int32, T: typedesc) =
proc name*(w: Window): T =
wrapper.getWindowAttrib(w, id).T
defWindowAttrib(visible, hVisible, bool)
defWindowAttrib(focused, hFocused, bool)
defWindowAttrib(iconified, Iconified, bool)
defWindowAttrib(maximized, hMaximized, bool)
defWindowAttrib(hovered, hHovered, bool)
defWindowAttrib(focusOnShow, hFocusOnShow, bool)
defWindowAttrib(resizable, hResizable, bool)
defWindowAttrib(decorated, hDecorated, bool)
defWindowAttrib(floating, hFloating, bool)
defWindowAttrib(clientApi, hClientApi, ClientApi)
defWindowAttrib(contextCreationApi, hContextCreationApi, ContextCreationApi)
defWindowAttrib(contextVersionMajor, hContextVersionMajor, int)
defWindowAttrib(contextVersionMinor, hContextVersionMinor, int)
defWindowAttrib(contextRevision, hContextRevision, int)
defWindowAttrib(openglForwardCompat, hOpenglForwardCompat, bool)
defWindowAttrib(openglDebugContext, hOpenglDebugContext, bool)
defWindowAttrib(openglProfile, hOpenglProfile, OpenglProfile)
defWindowAttrib(contextRobustness, hContextRobustness, ContextRobustness)
template defInputMode(name: untyped, id: int32, T: typedesc) =
proc name*(w: Window): T =
wrapper.getInputMode(w, id).T
proc `name=`*(w: Window, v: T) =
wrapper.setInputMode(w, id, v.int32)
defInputMode(stickyKeys, wrapper.StickyKeys, bool)
defInputMode(stickyMouseButtons, wrapper.StickyMouseButtons, bool)
defInputMode(cursorMode, wrapper.CursorModeConst, wrapper.CursorMode)
defInputMode(lockKeyMods, wrapper.LockKeyMods, bool)
defInputMode(rawMouseMotion, wrapper.RawMouseMotion, bool)
defInputMode(anyPosition, wrapper.AnyPosition, bool)
proc monitor*(w: Window): Monitor =
newMonitor(wrapper.getWindowMonitor(w))
proc `monitor=`*(w: Window, args: tuple[monitor: Monitor;
xpos, ypos, width, height: int;
refreshRate: int]) =
wrapper.setWindowMonitor(w, args.monitor, args.xpos.int32, args.ypos.int32,
args.width.int32, args.height.int32,
args.refreshRate.int32)
proc isKeyDown*(w: Window, key: Key): bool =
wrapper.getKey(w, key.int32).KeyAction == kaDown
proc isKeyUp*(w: Window, key: Key): bool =
wrapper.getKey(w, key.int32).KeyAction == kaUp
proc mouseButtonDown*(w: Window, button: MouseButton): bool =
wrapper.getMouseButton(w, button.int32).KeyAction == kaDown
proc mouseButtonUp*(w: Window, button: MouseButton): bool =
wrapper.getMouseButton(w, button.int32).KeyAction == kaUp
proc cursorPos*(w: Window): tuple[x, y: float64] =
wrapper.getCursorPos(w, result.x.addr, result.y.addr)
proc `cursorPos=`*(w: Window, pos: tuple[x, y: float64]) =
wrapper.setCursorPos(w, pos.x.cdouble, pos.y.cdouble)
proc `cursor=`*(w: Window, c: Cursor) =
wrapper.setCursor(w, c)
proc isJoystickPresent*(w: Window, joy: int): bool =
wrapper.joystickPresent(joy.int32).bool
iterator joystickAxes*(joy: int): float =
var count: int32
var axesPtr = wrapper.getJoystickAxes(joy.int32, count.addr)
fail(iff = count <= 0)
var axes = cast[ptr array[10_000, float32]](axesPtr)
for i in 0 .. count - 1:
yield axes[i]
iterator getJoystickButtons*(joy: int): cstring =
var count: int32
var buttonPtr = wrapper.getJoystickButtons(joy.int32, count.addr)
fail(iff = count <= 0)
var buttons = cast[ptr array[10_000, cstring]](buttonPtr)
for i in 0 .. count - 1:
yield buttons[i]
iterator joystickHats*(joy: int): cstring =
var count: int32
var hatPtr = wrapper.getJoystickHats(joy.int32, count.addr)
fail(iff = count <= 0)
var hats = cast[ptr array[10_000, cstring]](hatPtr)
for i in 0 .. count - 1:
yield hats[i]
proc joystickName*(joy: int): cstring =
wrapper.getJoystickName(joy.int32)
proc `clipboardString=`*(w: Window, str: string) =
wrapper.setClipboardString(w, str)
proc clipboardString*(w: Window): cstring =
wrapper.getClipboardString(w).failIf(nil)
proc major*(ver: OpenglVersion|OpenglEsVersion): int =
ver.int shr 8 and 0xf
proc minor*(ver: OpenglVersion|OpenglEsVersion): int =
ver.int shr 4 and 0xf
proc revision*(ver: OpenglVersion|OpenglEsVersion): int =
ver.int and 0xf
type
OpenglWindowConfig* = object
size*: tuple[w, h: int32]
title*: string
fullscreenMonitor*: Monitor
shareResourcesWith*: Window
focused*: bool
iconified*: bool
resizable*: bool
visible*: bool
decorated*: bool
autoIconify*: bool
floating*: bool
maximized*: bool
centerCursor*: bool
transparentFramebuffer*: bool
hovered*: bool
focusOnShow*: bool
mousePassthrough*: bool
hideFromTaskbar*: bool
stereo*: bool
srgbCapableFramebuffer*: bool
doubleBuffer*: bool
scaleToMonitor*: bool
scaleFramebuffer*: bool
forwardCompat*: bool
debugContext*: bool
makeContextCurrent*: bool
bits*: tuple[r, g, b, a, stencil, depth: Option[int32]]
accumBufferBits*: tuple[r, g, b, a: Option[int32]]
nAuxBuffers*, nMultiSamples*: int
refreshRate*: Option[int32]
contextReleaseBehavior*: ContextReleaseBehavior
contextRobustness*: ContextRobustness
contextCreationApi*: ContextCreationApi
version*: OpenglVersion
profile*: OpenglProfile
contextNoError*: bool
OpenglEsWindowConfig* = object
size*: tuple[w, h: int32]
title*: string
fullscreenMonitor*: Monitor
shareResourcesWith*: Window
focused*: bool
iconified*: bool
resizable*: bool
visible*: bool
decorated*: bool
autoIconify*: bool
floating*: bool
maximized*: bool
stereo*: bool
srgbCapableFramebuffer*: bool
doubleBuffer*: bool
openglVersion*: bool
makeContextCurrent*: bool
bits*: tuple[r, g, b, a, stencil, depth: Option[int32]]
accumBufferBits*: tuple[r, g, b, a: Option[int32]]
nAuxBuffers*, nMultiSamples*: int32
refreshRate*: Option[int32]
contextReleaseBehavior*: ContextReleaseBehavior
contextRobustness*: ContextRobustness
contextCreationApi*: ContextCreationApi
version*: OpenglEsVersion
contextNoError*: bool
SomeOpenglWindowConfigType* = OpenglWindowConfig|OpenglEsWindowConfig
# XXX: Can this be a constant?
let DefaultOpenglWindowConfig* = OpenglWindowConfig(
size: (w: 640, h: 480),
title: "Nim-GLFW window",
fullscreenMonitor: NoMonitor,
shareResourcesWith: nil.Window,
focused: true,
iconified: false,
resizable: true,
visible: true,
decorated: true,
autoIconify: true,
floating: false,
maximized: false,
centerCursor: true,
transparentFramebuffer: false,
hovered: false,
focusOnShow: true,
mousePassthrough: false,
hideFromTaskbar: false,
stereo: false,
srgbCapableFramebuffer: false,
doubleBuffer: true,
scaleToMonitor: false,
scaleFramebuffer: true,
forwardCompat: false,
debugContext: false,
makeContextCurrent: true,
bits: (some(8'i32), some(8'i32), some(8'i32), some(8'i32),
some(8'i32), some(24'i32)),
accumBufferBits: (some(0'i32), some(0'i32), some(0'i32), some(0'i32)),
nAuxBuffers: 0,
nMultiSamples: 0,
refreshRate: some(0'i32),
contextRobustness: crNoRobustness,
contextCreationApi: ccaNativeContextApi,
contextReleaseBehavior: crbAnyReleaseBehavior,
version: glv10,
)
# XXX: Can this be a constant?
let DefaultOpenglEsWindowConfig* = OpenglEsWindowConfig(
size: (w: 640'i32, h: 480'i32),
title: "Nim-GLFW window",
fullscreenMonitor: NoMonitor,
shareResourcesWith: nil,
visible: true,
focused: true,
decorated: true,
resizable: false,
stereo: false,
srgbCapableFramebuffer: false,
contextNoError: false,
makeContextCurrent: true,
doubleBuffer: true,
bits: (some(8'i32), some(8'i32), some(8'i32), some(8'i32),
some(8'i32), some(24'i32)),
accumBufferBits: (some(0'i32), some(0'i32), some(0'i32), some(0'i32)),
nAuxBuffers: 0,
nMultiSamples: 0,
refreshRate: some(0'i32),
contextRobustness: crNoRobustness,
contextCreationApi: ccaNativeContextApi,
contextReleaseBehavior: crbAnyReleaseBehavior,
version: glesv10,
)
proc setHints(c: SomeOpenglWindowConfigType) =
template h(name, val: untyped) = wrapper.windowHint(name, val.int32)
for k, v in c.fieldPairs:
when k == "focused":
h(wrapper.hFocused, v)
elif k == "iconified":
h(wrapper.hIconified, v)
elif k == "resizable":
h(wrapper.hResizable, v)
elif k == "visible":
h(wrapper.hVisible, v)
elif k == "decorated":
h(wrapper.hDecorated, v)
elif k == "autoIconify":
h(wrapper.hAutoIconify, v)
elif k == "floating":
h(wrapper.hFloating, v)
elif k == "maximized":
h(wrapper.hMaximized, v)
elif k == "centerCursor":
h(wrapper.hCenterCursor, v)
elif k == "transparentFramebuffer":
h(wrapper.hTransparentFramebuffer, v)
elif k == "hovered":
h(wrapper.hHovered, v)
elif k == "focusOnShow":
h(wrapper.hFocusOnShow, v)
elif k == "mousePassthrough":
h(wrapper.hMousePassthrough, v)
elif k == "hideFromTaskbar":
h(wrapper.hHideFromTaskbar, v)
elif k == "bits":
template t(hint: Hint, field: untyped) =
const E = "An explicitly requested bit depth must be >= 0"
assert field.get(0) >= 0, E
h(hint, field.get(wrapper.DontCare))
t(wrapper.hRedBits, v.r)
t(wrapper.hGreenBits, v.r)
t(wrapper.hBlueBits, v.r)
t(wrapper.hAlphaBits, v.r)
t(wrapper.hDepthBits, v.r)
t(wrapper.hStencilBits, v.r)
elif k == "accumBufferBits":
template t(hint: Hint, field: untyped) =
const E = "An explicitly requested bit depth must be >= 0"
assert field.get(0) >= 0, E
h(hint, field.get(wrapper.DontCare))
t(wrapper.hAccumRedBits, v.r)
t(wrapper.hAccumGreenBits, v.g)
t(wrapper.hAccumBlueBits, v.b)
t(wrapper.hAccumAlphaBits, v.a)
elif k == "nAuxBuffers":
h(wrapper.hAuxBuffers, v)
elif k == "stereo":
h(wrapper.hStereo, v)
elif k == "nMultiSamples":
h(wrapper.hSamples, v)
elif k == "srgbCapableFramebuffer":
h(wrapper.hSrgbCapable, v)
elif k == "refreshRate":
assert v.get(0) >= 0,
"An explicitly requested refresh rate must be >= 0"
h(wrapper.hRefreshRate, v.get(DontCare))
elif k == "doubleBuffer":
h(wrapper.hDoubleBuffer, v)
elif k == "version":
h(wrapper.hContextVersionMajor, v.major)
h(wrapper.hContextVersionMinor, v.minor)
h(wrapper.hContextRevision, v.revision)
elif k == "contextRobustness":
h(wrapper.hContextRobustness, v)
elif k == "forwardCompat":
h(wrapper.hOpenglForwardCompat, v)
elif k == "debugContext":
h(wrapper.hOpenglDebugContext, v)
elif k == "profile":
h(wrapper.hOpenglProfile, v)
elif k == "contextReleaseBehavior":
h(wrapper.hContextReleaseBehavior, v)
elif k == "contextNoError":
h(wrapper.hContextNoError, v)
elif k == "contextCreationApi":
h(wrapper.hContextCreationApi, v)
elif k == "scaleToMonitor":
h(wrapper.hScaleToMonitor, v)
elif k == "scaleFramebuffer":
h(wrapper.hScaleFramebuffer, v)
elif k in ["size", "title", "fullscreenMonitor", "shareResourcesWith",
"makeContextCurrent"]:
discard
else:
{.fatal: "unhandled field: " & k.}
when c is OpenglWindowConfig:
h(wrapper.hClientApi, wrapper.oaOpenglApi)
elif c is OpenglEsWindowConfig:
h(wrapper.hClientApi, wrapper.oaOpenglEsApi)
else:
{.fatal: "unhandled type".}
proc newWindow*(handle: WindowHandle): Window =
Window(handle: handle)
proc destroy*(w: Window) =
wrapper.destroyWindow(w)
gWindowTable.del(w)
proc makeContextCurrent*(w: Window) =
wrapper.makeContextCurrent(w)
proc detachCurrentContext*() =
wrapper.makeContextCurrent(nil)
proc currentContext*(): Window =
let handle = wrapper.getCurrentContext()
if gWindowTable.hasKey(handle):
gWindowTable[handle]
else:
newWindow(handle)
# XXX: the template below breaks if 'c' is typed as 'SomeOpenglWindowConfigType'
proc newWindow*(c = DefaultOpenglWindowConfig): Window =
new(result)
setHints(c)
let sharedMonitor = if c.shareResourcesWith.isNil: nil
else: c.shareResourcesWith.handle
result.handle = wrapper.createWindow(
c.size.w, c.size.h, cstring(c.title),
c.fullscreenMonitor, sharedMonitor
).failIf(nil)
gWindowTable[result.handle] = result
if c.makeContextCurrent:
result.makeContextCurrent()
template get(f: untyped): bool {.dirty.} =
var win {.inject.} = gWindowTable.getOrDefault(handle)
var cb {.inject.} = if not win.isNil: win.f else: nil
not cb.isNil
windowPositionCb = proc(handle: WindowHandle, x, y: int32) {.cdecl.} =
if get(windowPositionCb):
cb(win, (x: x, y: y))
discard wrapper.setWindowPosCallback(result, windowPositionCb)
windowSizeCb = proc(handle: WindowHandle, w, h: int32) {.cdecl.} =
if get(windowSizeCb):
cb(win, (w, h))
discard wrapper.setWindowSizeCallback(result, windowSizeCb)
windowCloseCb = proc(handle: WindowHandle) {.cdecl.} =
if get(windowCloseCb):
cb(win)
discard wrapper.setWindowCloseCallback(result, windowCloseCb)
windowRefreshCb = proc(handle: WindowHandle) {.cdecl.} =
if get(windowRefreshCb):
cb(win)
discard wrapper.setWindowRefreshCallback(result, windowRefreshCb)
windowFocusCb = proc(handle: WindowHandle, focus: int32) {.cdecl.} =
if get(windowFocusCb):
cb(win, focus.bool)
discard wrapper.setWindowFocusCallback(result, windowFocusCb)
windowMaximizeCb = proc(handle: WindowHandle, maximize: int32) {.cdecl.} =
if get(windowMaximizeCb):
cb(win, maximize.bool)
discard wrapper.setWindowMaximizeCallback(result, windowMaximizeCb)
windowIconifyCb = proc(handle: WindowHandle, iconify: int32) {.cdecl.} =
if get(windowIconifyCb):
cb(win, iconify.bool)
discard wrapper.setWindowIconifyCallback(result, windowIconifyCb)
windowContentScaleCb = proc(handle: WindowHandle, xscale, yscale: cfloat) {.cdecl.} =
if get(windowContentScaleCb):
cb(win, xscale.float, yscale.float)
discard wrapper.setWindowContentScaleCallback(result, windowContentScaleCb)
framebufferSizeCb = proc(handle: WindowHandle, w, h: int32) {.cdecl.} =
if get(framebufferSizeCb):
cb(win, (w, h))
discard wrapper.setframebufferSizeCallback(result, framebufferSizeCb)
mouseButtonCb = proc(
handle: WindowHandle, button, pressed, modKeys: int32) {.cdecl.} =
if get(mouseButtonCb):
cb(win, MouseButton(button), pressed.bool, initModifierKeySet(modKeys))
discard wrapper.setMouseButtonCallback(result, mouseButtonCb)
cursorPositionCb = proc(handle: WindowHandle, x, y: cdouble) {.cdecl.} =
if get(cursorPositionCb):
cb(win, (x.float64, y.float64))
discard wrapper.setCursorPosCallback(result, cursorPositionCb)
cursorEnterCb = proc(handle: WindowHandle, entered: int32) {.cdecl.} =
if get(cursorEnterCb):
cb(win, entered.bool)
discard wrapper.setCursorEnterCallback(result, cursorEnterCb)
scrollCb = proc(handle: WindowHandle, xOffset, yOffset: cdouble) {.cdecl.} =
if get(scrollCb):
cb(win, (x: xOffset.float64, y: yOffset.float64))
discard wrapper.setScrollCallback(result, scrollCb)
keyCb = proc(
handle: WindowHandle, key, scanCode, action, modKeys: int32) {.cdecl.} =
if get(keyCb):
cb(win, Key(key), scanCode, action.KeyAction,
initModifierKeySet(modKeys))
discard wrapper.setKeyCallback(result, keyCb)
charCb = proc(handle: WindowHandle, codePoint: uint32) {.cdecl.} =
if get(charCb):
cb(win, codePoint.Rune)
discard wrapper.setCharCallback(result, charCb)
charModsCb = proc(
handle: WindowHandle, codePoint: uint32, modKeys: int32) {.cdecl.} =
if get(charModsCb):
cb(win, codePoint.Rune, initModifierKeySet(modKeys))
discard wrapper.setCharModsCallback(result, charModsCb)
dropCb = proc(
handle: WindowHandle, count: int32, paths: cstringArray) {.cdecl.} =
if get(dropCb):
cb(win, initPathDropInfo(paths, count))
discard wrapper.setDropCallback(result, dropCb)
proc swapBuffers*(w: Window) =
wrapper.swapBuffers(w)
proc version*: tuple[major, minor, rev: int] =
var major, minor, rev: int32
wrapper.getVersion(major.addr, minor.addr, rev.addr)
(major.int, minor.int, rev.int)
proc versionString*: cstring =
wrapper.getVersionString()
proc swapInterval*(interval: Natural) =
wrapper.swapInterval(interval.int32)
proc getTime*: float64 =
wrapper.getTime()
proc setTime*(time: float64) =
wrapper.setTime(time)
proc timerValue*: uint64 =
wrapper.getTimerValue()
proc timerFrequency*: uint64 =
wrapper.getTimerFrequency()
proc `icons=`*(w: Window, images: openArray[wrapper.IconImageObj]) =
wrapper.setWindowIcon(w, images.len.int32, images[0].unsafeAddr)
proc keyName*(key: Key): cstring =