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Adding upstream version 0.0~git20250520.a1d9079+dfsg.

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Signed-off-by: Daniel Baumann <daniel@debian.org>
This commit is contained in:
Daniel Baumann 2025-05-24 19:46:29 +02:00
parent 590ac7ff5f
commit 20149b7f3a
Signed by: daniel
GPG key ID: FBB4F0E80A80222F
456 changed files with 70406 additions and 0 deletions
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105
exp/gl/glutil/context_x11.go Normal file
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@ -0,0 +1,105 @@
// Copyright 2014 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
//go:build linux && !android
package glutil
/*
#cgo LDFLAGS: -lEGL
#include <EGL/egl.h>
#include <stdio.h>
#include <stdlib.h>
void createContext(EGLDisplay *out_dpy, EGLContext *out_ctx, EGLSurface *out_surf) {
EGLDisplay e_dpy = eglGetDisplay(EGL_DEFAULT_DISPLAY);
if (!e_dpy) {
fprintf(stderr, "eglGetDisplay failed\n");
exit(1);
}
EGLint e_major, e_minor;
if (!eglInitialize(e_dpy, &e_major, &e_minor)) {
fprintf(stderr, "eglInitialize failed\n");
exit(1);
}
eglBindAPI(EGL_OPENGL_ES_API);
static const EGLint config_attribs[] = {
EGL_RENDERABLE_TYPE, EGL_OPENGL_ES2_BIT,
EGL_SURFACE_TYPE, EGL_PBUFFER_BIT,
EGL_BLUE_SIZE, 8,
EGL_GREEN_SIZE, 8,
EGL_RED_SIZE, 8,
EGL_CONFIG_CAVEAT, EGL_NONE,
EGL_NONE
};
EGLConfig config;
EGLint num_configs;
if (!eglChooseConfig(e_dpy, config_attribs, &config, 1, &num_configs)) {
fprintf(stderr, "eglChooseConfig failed\n");
exit(1);
}
static const EGLint ctx_attribs[] = {
EGL_CONTEXT_CLIENT_VERSION, 2,
EGL_NONE
};
EGLContext e_ctx = eglCreateContext(e_dpy, config, EGL_NO_CONTEXT, ctx_attribs);
if (e_ctx == EGL_NO_CONTEXT) {
fprintf(stderr, "eglCreateContext failed\n");
exit(1);
}
static const EGLint pbuf_attribs[] = {
EGL_NONE
};
EGLSurface e_surf = eglCreatePbufferSurface(e_dpy, config, pbuf_attribs);
if (e_surf == EGL_NO_SURFACE) {
fprintf(stderr, "eglCreatePbufferSurface failed\n");
exit(1);
}
if (!eglMakeCurrent(e_dpy, e_surf, e_surf, e_ctx)) {
fprintf(stderr, "eglMakeCurrent failed\n");
exit(1);
}
*out_surf = e_surf;
*out_ctx = e_ctx;
*out_dpy = e_dpy;
}
void destroyContext(EGLDisplay e_dpy, EGLContext e_ctx, EGLSurface e_surf) {
if (!eglMakeCurrent(e_dpy, EGL_NO_SURFACE, EGL_NO_SURFACE, EGL_NO_CONTEXT)) {
fprintf(stderr, "eglMakeCurrent failed\n");
exit(1);
}
if (!eglDestroySurface(e_dpy, e_surf)) {
fprintf(stderr, "eglDestroySurface failed\n");
exit(1);
}
if (!eglDestroyContext(e_dpy, e_ctx)) {
fprintf(stderr, "eglDestroyContext failed\n");
exit(1);
}
}
*/
import "C"
import (
"runtime"
)
type contextGL struct {
dpy C.EGLDisplay
ctx C.EGLContext
surf C.EGLSurface
}
func createContext() (*contextGL, error) {
runtime.LockOSThread()
c := &contextGL{}
C.createContext(&c.dpy, &c.ctx, &c.surf)
return c, nil
}
func (c *contextGL) destroy() {
C.destroyContext(c.dpy, c.ctx, c.surf)
runtime.UnlockOSThread()
}