Files
qemu/ui/egl-context.c
Dmitry Osipenko 3beb637032 ui/egl: Don't change bound GL context when creating new context
Don't change bound GL context when creating new GL context for consistency
with behavior expected by virglrenderer that assumes context-creation doesn't
switch context. eglCreateContext() doesn't require GL context to be bound
when it's invoked. Update qemu_egl_create_context() to spawn GL sub-contexts
from a given shared GL context instead of a currently-bound context.

Signed-off-by: Dmitry Osipenko <dmitry.osipenko@collabora.com>
Message-ID: <20260303151422.977399-4-dmitry.osipenko@collabora.com>
Message-ID: <20260304165043.1437519-6-alex.bennee@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
2026-03-06 17:27:40 +00:00

44 lines
1.3 KiB
C

#include "qemu/osdep.h"
#include "qemu/error-report.h"
#include "ui/egl-context.h"
QEMUGLContext qemu_egl_create_context(DisplayGLCtx *dgc,
QEMUGLParams *params,
EGLContext share_context)
{
EGLContext ctx;
EGLint ctx_att_core[] = {
EGL_CONTEXT_OPENGL_PROFILE_MASK, EGL_CONTEXT_OPENGL_CORE_PROFILE_BIT,
EGL_CONTEXT_CLIENT_VERSION, params->major_ver,
EGL_CONTEXT_MINOR_VERSION_KHR, params->minor_ver,
EGL_NONE
};
EGLint ctx_att_gles[] = {
EGL_CONTEXT_CLIENT_VERSION, params->major_ver,
EGL_CONTEXT_MINOR_VERSION_KHR, params->minor_ver,
EGL_NONE
};
bool gles = (qemu_egl_mode == DISPLAY_GL_MODE_ES);
ctx = eglCreateContext(qemu_egl_display, qemu_egl_config, share_context,
gles ? ctx_att_gles : ctx_att_core);
return ctx;
}
void qemu_egl_destroy_context(DisplayGLCtx *dgc, QEMUGLContext ctx)
{
eglDestroyContext(qemu_egl_display, ctx);
}
int qemu_egl_make_context_current(DisplayGLCtx *dgc,
QEMUGLContext ctx)
{
if (!eglMakeCurrent(qemu_egl_display,
EGL_NO_SURFACE, EGL_NO_SURFACE, ctx)) {
error_report("egl: eglMakeCurrent failed: %s", qemu_egl_get_error_string());
return -1;
}
return 0;
}