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/**************************************************************************
*
* Copyright (C) 2016 Red Hat Inc.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included
* in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
* OTHER DEALINGS IN THE SOFTWARE.
*
**************************************************************************/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <epoxy/glx.h>
#include "virglrenderer.h"
#include "vrend_winsys_glx.h"
struct virgl_glx {
Display *display;
GLXFBConfig* fbConfigs;
GLXPbuffer pbuffer;
};
struct virgl_glx *virgl_glx_init(void)
{
struct virgl_glx *d;
d = malloc(sizeof(struct virgl_glx));
if (!d)
return NULL;
d->display = XOpenDisplay(NULL);
if (!d->display) {
free(d);
return NULL;
}
int visualAttribs[] = { None };
int numberOfFramebufferConfigurations = 0;
d->fbConfigs = glXChooseFBConfig(d->display, DefaultScreen(d->display),
visualAttribs, &numberOfFramebufferConfigurations);
int pbufferAttribs[] = {
GLX_PBUFFER_WIDTH, 32,
GLX_PBUFFER_HEIGHT, 32,
None
};
d->pbuffer = glXCreatePbuffer(d->display, d->fbConfigs[0], pbufferAttribs);
return d;
}
void virgl_glx_destroy(struct virgl_glx *d)
{
XFree(d->fbConfigs);
glXDestroyPbuffer(d->display,d->pbuffer);
XCloseDisplay(d->display);
free(d);
}
virgl_renderer_gl_context virgl_glx_create_context(struct virgl_glx *d, struct virgl_gl_ctx_param *vparams)
{
int context_attribs[] = {
GLX_CONTEXT_MAJOR_VERSION_ARB, vparams->major_ver,
GLX_CONTEXT_MINOR_VERSION_ARB, vparams->minor_ver,
None
};
GLXContext ctx =
glXCreateContextAttribsARB(d->display, d->fbConfigs[0],
vparams->shared ? glXGetCurrentContext() : NULL,
True, context_attribs);
return (virgl_renderer_gl_context)ctx;
}
void virgl_glx_destroy_context(struct virgl_glx *d, virgl_renderer_gl_context virglctx)
{
GLXContext ctx = (GLXContext)virglctx;
glXDestroyContext(d->display,ctx);
}
int virgl_glx_make_context_current(struct virgl_glx *d, virgl_renderer_gl_context virglctx)
{
return glXMakeContextCurrent(d->display, d->pbuffer, d->pbuffer, virglctx) ? 0 : -1;
}
uint32_t virgl_glx_query_video_memory(struct virgl_glx *d)
{
uint32_t video_memory = 0;
if (d) {
if (epoxy_has_glx_extension(d->display, DefaultScreen(d->display), "GLX_MESA_query_renderer")) {
glXQueryCurrentRendererIntegerMESA(GLX_RENDERER_VIDEO_MEMORY_MESA, &video_memory);
}
}
return video_memory;
}
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