Commit 6c18744d authored by Gerd Hoffmann's avatar Gerd Hoffmann
Browse files

opengl: add egl-context.[ch] helpers 



Add helper functions to manage opengl contexts using egl.

Signed-off-by: default avatarGerd Hoffmann <kraxel@redhat.com>
Reviewed-by: default avatarMarc-André Lureau <marcandre.lureau@redhat.com>
parent e9c1b459

include/ui/egl-context.h

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#ifndef EGL_CONTEXT_H

#define EGL_CONTEXT_H



#include "ui/console.h"

#include "ui/egl-helpers.h"



QEMUGLContext qemu_egl_create_context(DisplayChangeListener *dcl,

                                      QEMUGLParams *params);

void qemu_egl_destroy_context(DisplayChangeListener *dcl, QEMUGLContext ctx);

int qemu_egl_make_context_current(DisplayChangeListener *dcl,

                                  QEMUGLContext ctx);

QEMUGLContext qemu_egl_get_current_context(DisplayChangeListener *dcl);



#endif /* EGL_CONTEXT_H */

ui/Makefile.objs

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@@ -31,6 +31,7 @@ ifeq ($(CONFIG_OPENGL),y) 
common-obj-y += shader.o

common-obj-y += console-gl.o

common-obj-y += egl-helpers.o

common-obj-y += egl-context.o

common-obj-$(CONFIG_GTK) += gtk-egl.o

endif

ui/egl-context.c

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#include "qemu-common.h"

#include "ui/egl-context.h"



QEMUGLContext qemu_egl_create_context(DisplayChangeListener *dcl,

                                      QEMUGLParams *params)

{

   EGLContext ctx;

   EGLint ctx_att[] = {

      EGL_CONTEXT_CLIENT_VERSION, params->major_ver,

      EGL_CONTEXT_MINOR_VERSION_KHR, params->minor_ver,

      EGL_NONE

   };



   ctx = eglCreateContext(qemu_egl_display, qemu_egl_config,

                          eglGetCurrentContext(), ctx_att);

   return ctx;

}



void qemu_egl_destroy_context(DisplayChangeListener *dcl, QEMUGLContext ctx)

{

    eglDestroyContext(qemu_egl_display, ctx);

}



int qemu_egl_make_context_current(DisplayChangeListener *dcl,

                                  QEMUGLContext ctx)

{

   return eglMakeCurrent(qemu_egl_display,

                         EGL_NO_SURFACE, EGL_NO_SURFACE, ctx);

}



QEMUGLContext qemu_egl_get_current_context(DisplayChangeListener *dcl)

{

    return eglGetCurrentContext();

}