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glfw: dont call getError unless we need to

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Lee Cannon 2022-02-08 01:49:22 +00:00 • committed by Stephen Gutekanst
parent 746b0dd1f0
commit 3e79a12f3d
11 changed files with 111 additions and 92 deletions
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89
glfw/src/native.zig
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@ -67,12 +67,12 @@ pub fn Native(comptime options: BackendOptions) type {
/// thread_safety: This function may be called from any thread. Access is not synchronized.
pub fn getWin32Adapter(monitor: Monitor) [*:0]const u8 {
internal_debug.assertInitialized();
const adapter = native.glfwGetWin32Adapter(@ptrCast(*native.GLFWmonitor, monitor.handle));
if (native.glfwGetWin32Adapter(@ptrCast(*native.GLFWmonitor, monitor.handle))) |adapter| return adapter;
getError() catch |err| return switch (err) {
Error.NotInitialized => unreachable,
else => unreachable,
};
return adapter;
unreachable;
}
/// Returns the display device name of the specified monitor.
@ -85,12 +85,12 @@ pub fn Native(comptime options: BackendOptions) type {
/// thread_safety: This function may be called from any thread. Access is not synchronized.
pub fn getWin32Monitor(monitor: Monitor) [*:0]const u8 {
internal_debug.assertInitialized();
const mon = native.glfwWin32Monitor(@ptrCast(*native.GLFWmonitor, monitor.handle));
if (native.glfwGetWin32Monitor(@ptrCast(*native.GLFWmonitor, monitor.handle))) |mon| return mon;
getError() catch |err| return switch (err) {
Error.NotInitialized => unreachable,
else => unreachable,
};
return mon;
unreachable;
}
/// Returns the `HWND` of the specified window.
@ -108,12 +108,13 @@ pub fn Native(comptime options: BackendOptions) type {
/// thread_safety: This function may be called from any thread. Access is not synchronized.
pub fn getWin32Window(window: Window) std.os.windows.HWND {
internal_debug.assertInitialized();
const win = native.glfwGetWin32Window(@ptrCast(*native.GLFWwindow, window.handle));
if (native.glfwGetWin32Window(@ptrCast(*native.GLFWwindow, window.handle))) |win|
return @ptrCast(std.os.windows.HWND, win);
getError() catch |err| return switch (err) {
Error.NotInitialized => unreachable,
else => unreachable,
};
return @ptrCast(std.os.windows.HWND, win);
unreachable;
}
/// Returns the `HGLRC` of the specified window.
@ -131,13 +132,13 @@ pub fn Native(comptime options: BackendOptions) type {
/// thread_safety: This function may be called from any thread. Access is not synchronized.
pub fn getWGLContext(window: Window) error{NoWindowContext}!std.os.windows.HGLRC {
internal_debug.assertInitialized();
const context = native.glfwGetWGLContext(@ptrCast(*native.GLFWwindow, window.handle));
if (native.glfwGetWGLContext(@ptrCast(*native.GLFWwindow, window.handle))) |context| return context;
getError() catch |err| return switch (err) {
Error.NotInitialized => unreachable,
Error.NoWindowContext => |e| @errSetCast(error{NoWindowContext}, e),
else => unreachable,
};
return context;
unreachable;
}
/// Returns the `CGDirectDisplayID` of the specified monitor.
@ -148,11 +149,12 @@ pub fn Native(comptime options: BackendOptions) type {
pub fn getCocoaMonitor(monitor: Monitor) u32 {
internal_debug.assertInitialized();
const mon = native.glfwGetCocoaMonitor(@ptrCast(*native.GLFWmonitor, monitor.handle));
if (mon != native.kCGNullDirectDisplay) return mon;
getError() catch |err| return switch (err) {
Error.NotInitialized => unreachable,
else => unreachable,
};
return mon;
unreachable;
}
/// Returns the `NSWindow` of the specified window.
@ -193,12 +195,12 @@ pub fn Native(comptime options: BackendOptions) type {
/// thread_safety: This function may be called from any thread. Access is not synchronized.
pub fn getX11Display() *anyopaque {
internal_debug.assertInitialized();
const display = native.glfwGetX11Display();
if (native.glfwGetX11Display()) |display| return @ptrCast(*anyopaque, display);
getError() catch |err| return switch (err) {
Error.NotInitialized => unreachable,
else => unreachable,
};
return @ptrCast(*anyopaque, display);
unreachable;
}
/// Returns the `RRCrtc` of the specified monitor.
@ -209,11 +211,12 @@ pub fn Native(comptime options: BackendOptions) type {
pub fn getX11Adapter(monitor: Monitor) u32 {
internal_debug.assertInitialized();
const adapter = native.glfwGetX11Adapter(@ptrCast(*native.GLFWMonitor, monitor.handle));
if (adapter != 0) return adapter;
getError() catch |err| return switch (err) {
Error.NotInitialized => unreachable,
else => unreachable,
};
return adapter;
unreachable;
}
/// Returns the `RROutput` of the specified monitor.
@ -224,11 +227,12 @@ pub fn Native(comptime options: BackendOptions) type {
pub fn getX11Monitor(monitor: Monitor) u32 {
internal_debug.assertInitialized();
const mon = native.glfwGetX11Monitor(@ptrCast(*native.GLFWmonitor, monitor.handle));
if (mon != 0) return mon;
getError() catch |err| return switch (err) {
Error.NotInitialized => unreachable,
else => unreachable,
};
return mon;
unreachable;
}
/// Returns the `Window` of the specified window.
@ -239,11 +243,12 @@ pub fn Native(comptime options: BackendOptions) type {
pub fn getX11Window(window: Window) u32 {
internal_debug.assertInitialized();
const win = native.glfwGetX11Window(@ptrCast(*native.GLFWwindow, window.handle));
if (win != 0) return @intCast(u32, win);
getError() catch |err| return switch (err) {
Error.NotInitialized => unreachable,
else => unreachable,
};
return @intCast(u32, win);
unreachable;
}
/// Sets the current primary selection to the specified string.
@ -274,13 +279,13 @@ pub fn Native(comptime options: BackendOptions) type {
/// thread_safety: This function must only be called from the main thread.
pub fn getX11SelectionString() error{FormatUnavailable}![*:0]const u8 {
internal_debug.assertInitialized();
const str = native.glfwGetX11SelectionString();
if (native.glfwGetX11SelectionString()) |str| return str;
getError() catch |err| return switch (err) {
Error.NotInitialized => unreachable,
Error.FormatUnavailable => |e| @errSetCast(error{FormatUnavailable}, e),
else => unreachable,
};
return str;
unreachable;
}
/// Returns the `GLXContext` of the specified window.
@ -290,13 +295,13 @@ pub fn Native(comptime options: BackendOptions) type {
/// thread_safety: This function may be called from any thread. Access is not synchronized.
pub fn getGLXContext(window: Window) error{NoWindowContext}!*anyopaque {
internal_debug.assertInitialized();
const context = native.glfwGetGLXContext(@ptrCast(*native.GLFWwindow, window.handle));
if (native.glfwGetGLXContext(@ptrCast(*native.GLFWwindow, window.handle))) |context| return @ptrCast(*anyopaque, context);
getError() catch |err| return switch (err) {
Error.NotInitialized => unreachable,
Error.NoWindowContext => |e| @errSetCast(error{NoWindowContext}, e),
else => unreachable,
};
return @ptrCast(*anyopaque, context);
unreachable;
}
/// Returns the `GLXWindow` of the specified window.
@ -307,12 +312,13 @@ pub fn Native(comptime options: BackendOptions) type {
pub fn getGLXWindow(window: Window) error{NoWindowContext}!*anyopaque {
internal_debug.assertInitialized();
const win = native.glfwGetGLXWindow(@ptrCast(*native.GLFWwindow, window.handle));
if (win != 0) return @ptrCast(*anyopaque, win);
getError() catch |err| return switch (err) {
Error.NotInitialized => unreachable,
Error.NoWindowContext => |e| @errSetCast(error{NoWindowContext}, e),
else => unreachable,
};
return @ptrCast(*anyopaque, win);
unreachable;
}
/// Returns the `*wl_display` used by GLFW.
@ -322,12 +328,12 @@ pub fn Native(comptime options: BackendOptions) type {
/// thread_safety: This function may be called from any thread. Access is not synchronized.
pub fn getWaylandDisplay() *anyopaque {
internal_debug.assertInitialized();
const display = native.glfwGetWaylandDisplay();
if (native.glfwGetWaylandDisplay()) |display| return @ptrCast(*anyopaque, display);
getError() catch |err| return switch (err) {
Error.NotInitialized => unreachable,
else => unreachable,
};
return @ptrCast(*anyopaque, display);
unreachable;
}
/// Returns the `*wl_output` of the specified monitor.
@ -337,12 +343,12 @@ pub fn Native(comptime options: BackendOptions) type {
/// thread_safety: This function may be called from any thread. Access is not synchronized.
pub fn getWaylandMonitor(monitor: Monitor) *anyopaque {
internal_debug.assertInitialized();
const mon = native.glfwGetWaylandMonitor(@ptrCast(*native.GLFWmonitor, monitor.handle));
if (native.glfwGetWaylandMonitor(@ptrCast(*native.GLFWmonitor, monitor.handle))) |mon| return @ptrCast(*anyopaque, mon);
getError() catch |err| return switch (err) {
Error.NotInitialized => unreachable,
else => unreachable,
};
return @ptrCast(*anyopaque, mon);
unreachable;
}
/// Returns the `*wl_surface` of the specified window.
@ -352,12 +358,12 @@ pub fn Native(comptime options: BackendOptions) type {
/// thread_safety: This function may be called from any thread. Access is not synchronized.
pub fn getWaylandWindow(window: Window) *anyopaque {
internal_debug.assertInitialized();
const win = native.glfwGetWaylandWindow(@ptrCast(*native.GLFWwindow, window.handle));
if (native.glfwGetWaylandWindow(@ptrCast(*native.GLFWwindow, window.handle))) |win| return @ptrCast(*anyopaque, win);
getError() catch |err| return switch (err) {
Error.NotInitialized => unreachable,
else => unreachable,
};
return @ptrCast(*anyopaque, win);
unreachable;
}
/// Returns the `EGLDisplay` used by GLFW.
@ -368,11 +374,12 @@ pub fn Native(comptime options: BackendOptions) type {
pub fn getEGLDisplay() *anyopaque {
internal_debug.assertInitialized();
const display = native.glfwGetEGLDisplay();
if (display != native.EGL_NO_DISPLAY) return @ptrCast(*anyopaque, display);
getError() catch |err| return switch (err) {
Error.NotInitialized => unreachable,
else => unreachable,
};
return @ptrCast(*anyopaque, display);
unreachable;
}
/// Returns the `EGLContext` of the specified window.
@ -383,12 +390,13 @@ pub fn Native(comptime options: BackendOptions) type {
pub fn getEGLContext(window: Window) error{NoWindowContext}!*anyopaque {
internal_debug.assertInitialized();
const context = native.glfwGetEGLContext(@ptrCast(*native.GLFWwindow, window.handle));
if (context != native.EGL_NO_CONTEXT) return @ptrCast(*anyopaque, context);
getError() catch |err| return switch (err) {
Error.NotInitialized => unreachable,
Error.NoWindowContext => |e| @errSetCast(error{NoWindowContext}, e),
else => unreachable,
};
return @ptrCast(*anyopaque, context);
unreachable;
}
/// Returns the `EGLSurface` of the specified window.
@ -399,12 +407,13 @@ pub fn Native(comptime options: BackendOptions) type {
pub fn getEGLSurface(window: Window) error{NoWindowContext}!*anyopaque {
internal_debug.assertInitialized();
const surface = native.glfwGetEGLSurface(@ptrCast(*native.GLFWwindow, window.handle));
if (surface != native.EGL_NO_SURFACE) return @ptrCast(*anyopaque, surface);
getError() catch |err| return switch (err) {
Error.NotInitialized => unreachable,
Error.NoWindowContext => |e| @errSetCast(error{NoWindowContext}, e),
else => unreachable,
};
return @ptrCast(*anyopaque, surface);
unreachable;
}
pub const OSMesaColorBuffer = struct {
@ -423,13 +432,19 @@ pub fn Native(comptime options: BackendOptions) type {
pub fn getOSMesaColorBuffer(window: Window) error{ PlatformError, NoWindowContext }!OSMesaColorBuffer {
internal_debug.assertInitialized();
var buf: OSMesaColorBuffer = undefined;
_ = native.glfwGetOSMesaColorBuffer(@ptrCast(*native.GLFWwindow, window.handle), &buf.width, &buf.height, &buf.format, &buf.buffer);
if (native.glfwGetOSMesaColorBuffer(
@ptrCast(*native.GLFWwindow, window.handle),
&buf.width,
&buf.height,
&buf.format,
&buf.buffer,
) == native.GLFW_TRUE) return buf;
getError() catch |err| return switch (err) {
Error.NotInitialized => unreachable,
Error.PlatformError, Error.NoWindowContext => |e| @errSetCast(error{ PlatformError, NoWindowContext }, e),
else => unreachable,
};
return buf;
unreachable;
}
pub const OSMesaDepthBuffer = struct {
@ -448,13 +463,19 @@ pub fn Native(comptime options: BackendOptions) type {
pub fn getOSMesaDepthBuffer(window: Window) error{ PlatformError, NoWindowContext }!OSMesaDepthBuffer {
internal_debug.assertInitialized();
var buf: OSMesaDepthBuffer = undefined;
_ = native.glfwGetOSMesaDepthBuffer(@ptrCast(*native.GLFWwindow, window.handle), &buf.width, &buf.height, &buf.bytes_per_value, &buf.buffer);
if (native.glfwGetOSMesaDepthBuffer(
@ptrCast(*native.GLFWwindow, window.handle),
&buf.width,
&buf.height,
&buf.bytes_per_value,
&buf.buffer,
) == native.GLFW_TRUE) return buf;
getError() catch |err| return switch (err) {
Error.NotInitialized => unreachable,
Error.PlatformError, Error.NoWindowContext => |e| @errSetCast(error{ PlatformError, NoWindowContext }, e),
else => unreachable,
};
return buf;
unreachable;
}
/// Returns the 'OSMesaContext' of the specified window.
@ -464,13 +485,13 @@ pub fn Native(comptime options: BackendOptions) type {
/// thread_safety: This function may be called from any thread. Access is not synchronized.
pub fn getOSMesaContext(window: Window) error{NoWindowContext}!*anyopaque {
internal_debug.assertInitialized();
const context = native.glfwGetOSMesa(@ptrCast(*native.GLFWwindow, window.handle));
if (native.glfwGetOSMesaContext(@ptrCast(*native.GLFWwindow, window.handle))) |context| return @ptrCast(*anyopaque, context);
getError() catch |err| return switch (err) {
Error.NotInitialized => unreachable,
Error.NoWindowContext => |e| @errSetCast(error{NoWindowContext}, e),
else => unreachable,
};
return @ptrCast(*anyopaque, context);
unreachable;
}
};
}