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GLFW v3.4 #400

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58 changes: 58 additions & 0 deletions scripts/generate-buildable-source-code.sh
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#!/bin/env bash

EXEC=$0;

function usage() {
echo "usage: $EXEC <glfw_tag_name>";
exit $1;
}

TAG_NAME=$1;

if [ "x$TAG_NAME" = "x" ]; then
usage 1;
fi

IFS='.' read -a TAG_PARTS <<< "$TAG_NAME"
TAG_DIR="v${TAG_PARTS[0]}.${TAG_PARTS[1]}"
echo TAG_DIR
echo $TAG_DIR

CMD="mktemp -d";
TMP_DIR=$($CMD);
EXIT_CODE=$?;
if [ $EXIT_CODE != 0 ]; then
echo "$EXEC: \"$CMD\" failed to execute. exiting..." > /dev/stderr;
exit 1;
fi

pushd "$TMP_DIR";

git clone --depth 1 --branch "$TAG_NAME" https://github.com/glfw/glfw.git
mkdir glfw/build
cd glfw/build
cmake ..
# TODO don't use this hacky way to generate the wayland protocol headers
make -f src/CMakeFiles/glfw.dir/build.make src/CMakeFiles/glfw.dir/depend # generates required header files in build process
BUILD_DIR=../../glfw-aggregate
mkdir "$BUILD_DIR"
mkdir "$BUILD_DIR/include"
cp src/*.h "$BUILD_DIR/include"

cd ..
BUILD_DIR="./build/$BUILD_DIR"

cp -r src "$BUILD_DIR/src"
cp -r include/* "$BUILD_DIR/include"
cp -r deps "$BUILD_DIR/deps"
cp LICENSE.md "$BUILD_DIR/LICENSE.md"
# TODO generate dummy.go files

popd;
BUILD_DIR="$TMP_DIR/glfw/$BUILD_DIR"

GLFW_DIR="$TAG_DIR/glfw/glfw"
rm -rf "$GLFW_DIR"
mv "$BUILD_DIR" "$GLFW_DIR"

rm -rf "$TMP_DIR";
1 change: 1 addition & 0 deletions v3.4/glfw/GLFW_C_REVISION.txt
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dc46d3f8129712e42856c20e99a604a3b08ad581
57 changes: 57 additions & 0 deletions v3.4/glfw/build.go
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package glfw

/*
#cgo CFLAGS: -Iglfw/include -D_GNU_SOURCE
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So then, _GNU_SOURCE is now globally set?

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If no response to #400 (comment), I'll just mark this as resolved.


// Windows Build Tags
// ----------------
// GLFW Options:
#cgo windows CFLAGS: -D_GLFW_WIN32 -Iglfw/deps/mingw

// Linker Options:
#cgo windows LDFLAGS: -lgdi32

#cgo !gles2,windows LDFLAGS: -lopengl32
#cgo gles2,windows LDFLAGS: -lGLESv2

// Darwin Build Tags
// ----------------
// GLFW Options:
#cgo darwin CFLAGS: -D_GLFW_COCOA -Wno-deprecated-declarations

// Linker Options:
#cgo darwin LDFLAGS: -framework Cocoa -framework IOKit -framework CoreVideo

#cgo !gles2,darwin LDFLAGS: -framework OpenGL
#cgo gles2,darwin LDFLAGS: -lGLESv2

// Linux Build Tags
// ----------------
// GLFW Options:
#cgo linux,!wayland CFLAGS: -D_GLFW_X11
#cgo linux,x11 CFLAGS: -D_GLFW_X11
#cgo linux,wayland CFLAGS: -D_GLFW_WAYLAND
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@metal3d metal3d May 7, 2024

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See my comment on top, is it OK that _GNU_SOURCE is now globally set?

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We probably don't want it set but I couldn't compile at all without it.

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If no response to #400 (comment), I'll just mark this as resolved.


// Linker Options:
#cgo linux,!gles1,!gles2,!gles3,!vulkan LDFLAGS: -lGL
#cgo linux,gles1 LDFLAGS: -lGLESv1
#cgo linux,gles2 LDFLAGS: -lGLESv2
#cgo linux,gles3 LDFLAGS: -lGLESv3
#cgo linux,vulkan LDFLAGS: -lvulkan
#cgo linux,!wayland LDFLAGS: -lX11 -lXrandr -lXxf86vm -lXi -lXcursor -lm -lXinerama -ldl -lrt
#cgo linux,x11 LDFLAGS: -lX11 -lXrandr -lXxf86vm -lXi -lXcursor -lm -lXinerama -ldl -lrt
#cgo linux,wayland LDFLAGS: -lwayland-client -lwayland-cursor -lwayland-egl -lxkbcommon -lm -ldl -lrt

// BSD Build Tags
// ----------------
// GLFW Options:
#cgo freebsd,!wayland netbsd,!wayland openbsd pkg-config: x11 xau xcb xdmcp
#cgo freebsd,wayland netbsd,wayland pkg-config: wayland-client wayland-cursor wayland-egl epoll-shim
#cgo freebsd netbsd openbsd CFLAGS: -D_GLFW_HAS_DLOPEN
#cgo freebsd,!wayland netbsd,!wayland openbsd CFLAGS: -D_GLFW_X11 -D_GLFW_HAS_GLXGETPROCADDRESSARB
#cgo freebsd,wayland netbsd,wayland CFLAGS: -D_GLFW_WAYLAND

// Linker Options:
#cgo freebsd netbsd openbsd LDFLAGS: -lm
*/
import "C"
19 changes: 19 additions & 0 deletions v3.4/glfw/build_cgo_hack.go
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//go:build required
// +build required

package glfw

// This file exists purely to prevent the golang toolchain from stripping
// away the c source directories and files when `go mod vendor` is used
// to populate a `vendor/` directory of a project depending on `go-gl/glfw`.
//
// How it works:
// - every directory which only includes c source files receives a dummy.go file.
// - every directory we want to preserve is included here as a _ import.
// - this file is given a build to exclude it from the regular build.
import (
// Prevent go tooling from stripping out the c source files.
_ "github.com/go-gl/glfw/v3.4/glfw/glfw/deps"
_ "github.com/go-gl/glfw/v3.4/glfw/glfw/include/GLFW"
_ "github.com/go-gl/glfw/v3.4/glfw/glfw/src"
)
17 changes: 17 additions & 0 deletions v3.4/glfw/c_glfw.go
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package glfw

/*
#include "glfw/src/platform.c"
#include "glfw/src/context.c"
#include "glfw/src/null_init.c"
#include "glfw/src/init.c"
#include "glfw/src/input.c"
#include "glfw/src/null_joystick.c"
#include "glfw/src/null_monitor.c"
#include "glfw/src/monitor.c"
#include "glfw/src/vulkan.c"
#include "glfw/src/null_window.c"
#include "glfw/src/window.c"
#include "glfw/src/osmesa_context.c"
*/
import "C"
30 changes: 30 additions & 0 deletions v3.4/glfw/c_glfw_bsd.go
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//go:build freebsd || netbsd || openbsd
// +build freebsd netbsd openbsd

package glfw

/*
#ifdef _GLFW_WAYLAND
#include "glfw/src/wl_init.c"
#include "glfw/src/wl_monitor.c"
#include "glfw/src/wl_window.c"
#include "glfw/src/wayland-idle-inhibit-unstable-v1-client-protocol.c"
#include "glfw/src/wayland-pointer-constraints-unstable-v1-client-protocol.c"
#include "glfw/src/wayland-relative-pointer-unstable-v1-client-protocol.c"
#include "glfw/src/wayland-viewporter-client-protocol.c"
#include "glfw/src/wayland-xdg-decoration-unstable-v1-client-protocol.c"
#include "glfw/src/wayland-xdg-shell-client-protocol.c"
#endif
#ifdef _GLFW_X11
#include "glfw/src/x11_init.c"
#include "glfw/src/x11_monitor.c"
#include "glfw/src/x11_window.c"
#include "glfw/src/glx_context.c"
#endif
#include "glfw/src/null_joystick.c"
#include "glfw/src/posix_time.c"
#include "glfw/src/posix_thread.c"
#include "glfw/src/xkb_unicode.c"
#include "glfw/src/egl_context.c"
*/
import "C"
15 changes: 15 additions & 0 deletions v3.4/glfw/c_glfw_darwin.go
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package glfw

/*
#cgo CFLAGS: -x objective-c
#include "glfw/src/cocoa_init.m"
#include "glfw/src/cocoa_joystick.m"
#include "glfw/src/cocoa_monitor.m"
#include "glfw/src/cocoa_window.m"
#include "glfw/src/cocoa_time.c"
#include "glfw/src/posix_module.c"
#include "glfw/src/posix_thread.c"
#include "glfw/src/nsgl_context.m"
#include "glfw/src/egl_context.c"
*/
import "C"
16 changes: 16 additions & 0 deletions v3.4/glfw/c_glfw_lin.go
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//go:build linux
// +build linux

package glfw

/*
#include "glfw/src/glx_context.c"
#include "glfw/src/linux_joystick.c"
#include "glfw/src/posix_module.c"
#include "glfw/src/posix_poll.c"
#include "glfw/src/posix_time.c"
#include "glfw/src/posix_thread.c"
#include "glfw/src/xkb_unicode.c"
#include "glfw/src/egl_context.c"
*/
import "C"
11 changes: 11 additions & 0 deletions v3.4/glfw/c_glfw_lin_wayland.go
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//go:build linux && wayland
// +build linux,wayland

package glfw

/*
#include "glfw/src/wl_init.c"
#include "glfw/src/wl_monitor.c"
#include "glfw/src/wl_window.c"
*/
import "C"
11 changes: 11 additions & 0 deletions v3.4/glfw/c_glfw_lin_x11.go
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//go:build (linux && !wayland) || (linux && x11)
// +build linux,!wayland linux,x11

package glfw

/*
#include "glfw/src/x11_window.c"
#include "glfw/src/x11_init.c"
#include "glfw/src/x11_monitor.c"
*/
import "C"
13 changes: 13 additions & 0 deletions v3.4/glfw/c_glfw_windows.go
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package glfw

/*
#include "glfw/src/win32_init.c"
#include "glfw/src/win32_joystick.c"
#include "glfw/src/win32_monitor.c"
#include "glfw/src/win32_time.c"
#include "glfw/src/win32_thread.c"
#include "glfw/src/win32_window.c"
#include "glfw/src/wgl_context.c"
#include "glfw/src/egl_context.c"
*/
import "C"
94 changes: 94 additions & 0 deletions v3.4/glfw/context.go
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package glfw

//#include <stdlib.h>
//#define GLFW_INCLUDE_NONE
//#include "glfw/include/GLFW/glfw3.h"
import "C"

import (
"unsafe"
)

// MakeContextCurrent makes the context of the window current.
// Originally GLFW 3 passes a null pointer to detach the context.
// But since we're using receievers, DetachCurrentContext should
// be used instead.
func (w *Window) MakeContextCurrent() {
C.glfwMakeContextCurrent(w.data)
panicError()
}

// DetachCurrentContext detaches the current context.
func DetachCurrentContext() {
C.glfwMakeContextCurrent(nil)
panicError()
}

// GetCurrentContext returns the window whose context is current.
func GetCurrentContext() *Window {
w := C.glfwGetCurrentContext()
panicError()
if w == nil {
return nil
}
return windows.get(w)
}

// SwapBuffers swaps the front and back buffers of the window. If the
// swap interval is greater than zero, the GPU driver waits the specified number
// of screen updates before swapping the buffers.
func (w *Window) SwapBuffers() {
C.glfwSwapBuffers(w.data)
panicError()
}

// SwapInterval sets the swap interval for the current context, i.e. the number
// of screen updates to wait before swapping the buffers of a window and
// returning from SwapBuffers. This is sometimes called
// 'vertical synchronization', 'vertical retrace synchronization' or 'vsync'.
//
// Contexts that support either of the WGL_EXT_swap_control_tear and
// GLX_EXT_swap_control_tear extensions also accept negative swap intervals,
// which allow the driver to swap even if a frame arrives a little bit late.
// You can check for the presence of these extensions using
// ExtensionSupported. For more information about swap tearing,
// see the extension specifications.
//
// Some GPU drivers do not honor the requested swap interval, either because of
// user settings that override the request or due to bugs in the driver.
func SwapInterval(interval int) {
C.glfwSwapInterval(C.int(interval))
panicError()
}

// ExtensionSupported reports whether the specified OpenGL or context creation
// API extension is supported by the current context. For example, on Windows
// both the OpenGL and WGL extension strings are checked.
//
// As this functions searches one or more extension strings on each call, it is
// recommended that you cache its results if it's going to be used frequently.
// The extension strings will not change during the lifetime of a context, so
// there is no danger in doing this.
func ExtensionSupported(extension string) bool {
e := C.CString(extension)
defer C.free(unsafe.Pointer(e))
ret := glfwbool(C.glfwExtensionSupported(e))
panicError()
return ret
}

// GetProcAddress returns the address of the specified OpenGL or OpenGL ES core
// or extension function, if it is supported by the current context.
//
// A context must be current on the calling thread. Calling this function
// without a current context will cause a GLFW_NO_CURRENT_CONTEXT error.
//
// This function is used to provide GL proc resolving capabilities to an
// external C library.
func GetProcAddress(procname string) unsafe.Pointer {
p := C.CString(procname)
defer C.free(unsafe.Pointer(p))
ret := unsafe.Pointer(C.glfwGetProcAddress(p))
panicError()
return ret
}
3 changes: 3 additions & 0 deletions v3.4/glfw/error.c
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#include "_cgo_export.h"

void glfwSetErrorCallbackCB() { glfwSetErrorCallback((GLFWerrorfun)goErrorCB); }
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