xref: /openbmc/qemu/ui/egl-context.c (revision 1d48c9fd)
1 #include "qemu/osdep.h"
2 #include "qemu/error-report.h"
3 #include "ui/egl-context.h"
4 
qemu_egl_create_context(DisplayGLCtx * dgc,QEMUGLParams * params)5 QEMUGLContext qemu_egl_create_context(DisplayGLCtx *dgc,
6                                       QEMUGLParams *params)
7 {
8    EGLContext ctx;
9    EGLint ctx_att_core[] = {
10        EGL_CONTEXT_OPENGL_PROFILE_MASK, EGL_CONTEXT_OPENGL_CORE_PROFILE_BIT,
11        EGL_CONTEXT_CLIENT_VERSION, params->major_ver,
12        EGL_CONTEXT_MINOR_VERSION_KHR, params->minor_ver,
13        EGL_NONE
14    };
15    EGLint ctx_att_gles[] = {
16        EGL_CONTEXT_CLIENT_VERSION, params->major_ver,
17        EGL_CONTEXT_MINOR_VERSION_KHR, params->minor_ver,
18        EGL_NONE
19    };
20    bool gles = (qemu_egl_mode == DISPLAYGL_MODE_ES);
21 
22    ctx = eglCreateContext(qemu_egl_display, qemu_egl_config,
23                           eglGetCurrentContext(),
24                           gles ? ctx_att_gles : ctx_att_core);
25    return ctx;
26 }
27 
qemu_egl_destroy_context(DisplayGLCtx * dgc,QEMUGLContext ctx)28 void qemu_egl_destroy_context(DisplayGLCtx *dgc, QEMUGLContext ctx)
29 {
30     eglDestroyContext(qemu_egl_display, ctx);
31 }
32 
qemu_egl_make_context_current(DisplayGLCtx * dgc,QEMUGLContext ctx)33 int qemu_egl_make_context_current(DisplayGLCtx *dgc,
34                                   QEMUGLContext ctx)
35 {
36    if (!eglMakeCurrent(qemu_egl_display,
37                        EGL_NO_SURFACE, EGL_NO_SURFACE, ctx)) {
38         error_report("egl: eglMakeCurrent failed: %s", qemu_egl_get_error_string());
39         return -1;
40    }
41 
42    return 0;
43 }
44