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/*
* Copyright © 2008 Kristian Høgsberg
*
* Permission to use, copy, modify, distribute, and sell this software and its
* documentation for any purpose is hereby granted without fee, provided that
* the above copyright notice appear in all copies and that both that copyright
* notice and this permission notice appear in supporting documentation, and
* that the name of the copyright holders not be used in advertising or
* publicity pertaining to distribution of the software without specific,
* written prior permission. The copyright holders make no representations
* about the suitability of this software for any purpose. It is provided "as
* is" without express or implied warranty.
*
* THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
* EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
* DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
* TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
* OF THIS SOFTWARE.
*/
#include <X11/X.h>
#include <X11/Xlib.h>
#include <X11/Xmd.h>
#include <xf86drm.h>
#include "libdri2.h"
#include "eagle-internal.h"
typedef struct EGLDisplayX11 *EGLDisplayX11;
struct EGLDisplayX11 {
struct EGLDisplay base;
int eventBase;
int errorBase;
Window root;
Display *display;
};
typedef struct EGLSurfaceX11 *EGLSurfaceX11;
struct EGLSurfaceX11 {
struct EGLSurface base;
Drawable drawable;
};
static void
x11GetBuffers(EGLSurface surface, uint32_t *attachments, int count)
{
EGLDisplayX11 x11Display = (EGLDisplayX11) surface->display;
EGLSurfaceX11 x11Surface = (EGLSurfaceX11) surface;
DRI2Buffer *buffers;
int i, outCount;
buffers = DRI2GetBuffers(x11Display->display,
x11Surface->drawable,
&surface->width,
&surface->height,
attachments, count, &outCount);
for (i = 0; i < outCount; i++) {
surface->buffers[i].attachment = buffers[i].attachment;
surface->buffers[i].name = buffers[i].name;
surface->buffers[i].pitch = buffers[i].pitch;
surface->buffers[i].cpp = buffers[i].cpp;
}
surface->count = outCount;
XFree(buffers);
}
static EGLBoolean
x11SwapBuffers(EGLDisplay display, EGLSurface surface)
{
EGLDisplayX11 x11Display = (EGLDisplayX11) display;
EGLSurfaceX11 x11Surface = (EGLSurfaceX11) surface;
XserverRegion region;
XRectangle rect;
rect.x = 0;
rect.y = 0;
rect.width = surface->width;
rect.height = surface->height;
region = XFixesCreateRegion(x11Display->display, &rect, 1);
DRI2CopyRegion(x11Display->display, x11Surface->drawable,
region, DRI2BufferBackLeft, DRI2BufferFrontLeft);
XFixesDestroyRegion(x11Display->display, region);
return EGL_TRUE;
}
static EGLBoolean
x11DestroySurface(EGLDisplay display, EGLSurface surface)
{
EGLDisplayX11 x11Display = (EGLDisplayX11) display;
EGLSurfaceX11 x11Surface = (EGLSurfaceX11) surface;
DRI2DestroyDrawable(x11Display->display, x11Surface->drawable);
return EGL_TRUE;
}
static const struct EagleBackend x11Backend = {
x11GetBuffers,
x11SwapBuffers,
x11DestroySurface
};
EGLDisplay
eglCreateDisplayX11(Display *display, Window root)
{
EGLDisplayX11 x11Display;
int eventBase, errorBase;
int major, minor;
drm_magic_t magic;
char *driverName, *deviceName;
if (!DRI2QueryExtension(display, &eventBase, &errorBase))
return NULL;
if (!DRI2QueryVersion(display, &major, &minor) || major < 1)
return NULL;
if (!DRI2Connect(display, root, &driverName, &deviceName))
return NULL;
x11Display = malloc(sizeof *x11Display);
if (x11Display == NULL)
return NULL;
x11Display->eventBase = eventBase;
x11Display->errorBase = errorBase;
x11Display->display = display;
/* Get ude*/
if (eglInitDisplay(&x11Display->base, NULL, driverName) < 0) {
free(x11Display);
return NULL;
}
if (drmGetMagic(x11Display->base.fd, &magic)) {
free(x11Display);
return NULL;
}
DRI2Authenticate(display, root, magic);
x11Display->base.backend = &x11Backend;
return &x11Display->base;
}
EGLSurface
eglCreateSurfaceX11(EGLDisplay display, EGLConfig config,
Window window, int width, int height)
{
EGLSurfaceX11 x11Surface;
x11Surface = malloc(sizeof *x11Surface);
if (x11Surface == NULL)
return NULL;
x11Surface->drawable = window;
eglInitSurface(&x11Surface->base, display, config, width, height);
return &x11Surface->base;
}
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