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/* Cairo - a vector graphics library with display and print output
*
* Copyright © 2009 Chris Wilson
*
* This library is free software; you can redistribute it and/or
* modify it either under the terms of the GNU Lesser General Public
* License version 2.1 as published by the Free Software Foundation
* (the "LGPL") or, at your option, under the terms of the Mozilla
* Public License Version 1.1 (the "MPL"). If you do not alter this
* notice, a recipient may use your version of this file under either
* the MPL or the LGPL.
*
* You should have received a copy of the LGPL along with this library
* in the file COPYING-LGPL-2.1; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA
* You should have received a copy of the MPL along with this library
* in the file COPYING-MPL-1.1
*
* The contents of this file are subject to the Mozilla Public License
* Version 1.1 (the "License"); you may not use this file except in
* compliance with the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY
* OF ANY KIND, either express or implied. See the LGPL or the MPL for
* the specific language governing rights and limitations.
*
* The Original Code is the cairo graphics library.
*
* The Initial Developer of the Original Code is Chris Wilson.
*/
#include "cairo-boilerplate-private.h"
#include <cairo-gl.h>
#if CAIRO_HAS_GLESV3_SURFACE
#include <GLES3/gl3.h>
#include <EGL/eglext.h>
#elif CAIRO_HAS_GLESV2_SURFACE
#include <GLES2/gl2.h>
#elif CAIRO_HAS_GL_SURFACE
#include <GL/gl.h>
#endif
static const cairo_user_data_key_t gl_closure_key;
typedef struct _egl_target_closure {
EGLDisplay dpy;
EGLContext ctx;
cairo_device_t *device;
cairo_surface_t *surface;
} egl_target_closure_t;
static void
_cairo_boilerplate_egl_cleanup (void *closure)
{
egl_target_closure_t *gltc = closure;
cairo_device_finish (gltc->device);
cairo_device_destroy (gltc->device);
eglDestroyContext (gltc->dpy, gltc->ctx);
eglMakeCurrent (gltc->dpy, EGL_NO_SURFACE, EGL_NO_SURFACE, EGL_NO_CONTEXT);
eglTerminate (gltc->dpy);
free (gltc);
}
static cairo_surface_t *
_cairo_boilerplate_egl_create_surface (const char *name,
cairo_content_t content,
double width,
double height,
double max_width,
double max_height,
cairo_boilerplate_mode_t mode,
void **closure)
{
egl_target_closure_t *gltc;
cairo_surface_t *surface;
int major, minor;
EGLConfig config;
EGLint numConfigs;
EGLint config_attribs[] = {
EGL_RED_SIZE, 8,
EGL_GREEN_SIZE, 8,
EGL_BLUE_SIZE, 8,
EGL_ALPHA_SIZE, 8,
EGL_SURFACE_TYPE, EGL_PBUFFER_BIT,
#if CAIRO_HAS_GLESV3_SURFACE
EGL_RENDERABLE_TYPE, EGL_OPENGL_ES3_BIT_KHR,
#elif CAIRO_HAS_GLESV2_SURFACE
EGL_RENDERABLE_TYPE, EGL_OPENGL_ES2_BIT,
#elif CAIRO_HAS_GL_SURFACE
EGL_RENDERABLE_TYPE, EGL_OPENGL_BIT,
#endif
EGL_NONE
};
const EGLint ctx_attribs[] = {
#if CAIRO_HAS_GLESV3_SURFACE
EGL_CONTEXT_CLIENT_VERSION, 3,
#elif CAIRO_HAS_GLESV2_SURFACE
EGL_CONTEXT_CLIENT_VERSION, 2,
#endif
EGL_NONE
};
gltc = xcalloc (1, sizeof (egl_target_closure_t));
*closure = gltc;
gltc->dpy = eglGetDisplay (EGL_DEFAULT_DISPLAY);
if (! eglInitialize (gltc->dpy, &major, &minor)) {
free (gltc);
return NULL;
}
eglChooseConfig (gltc->dpy, config_attribs, &config, 1, &numConfigs);
#if CAIRO_HAS_GLESV3_SURFACE && CAIRO_HAS_GLESV2_SURFACE
if (numConfigs == 0) {
/* retry with ES2_BIT */
config_attribs[11] = ES2_BIT; /* FIXME: Ick */
eglChooseConfig (gltc->dpy, config_attribs, &config, 1, &numConfigs);
}
#endif
if (numConfigs == 0) {
free (gltc);
return NULL;
}
#if CAIRO_HAS_GLESV3_SURFACE || CAIRO_HAS_GLESV2_SURFACE
eglBindAPI (EGL_OPENGL_ES_API);
#elif CAIRO_HAS_GL_SURFACE
eglBindAPI (EGL_OPENGL_API);
#endif
gltc->ctx = eglCreateContext (gltc->dpy, config, EGL_NO_CONTEXT,
ctx_attribs);
if (gltc->ctx == EGL_NO_CONTEXT) {
eglTerminate (gltc->dpy);
free (gltc);
return NULL;
}
gltc->device = cairo_egl_device_create (gltc->dpy, gltc->ctx);
if (mode == CAIRO_BOILERPLATE_MODE_PERF)
cairo_gl_device_set_thread_aware(gltc->device, FALSE);
if (width < 1)
width = 1;
if (height < 1)
height = 1;
gltc->surface = surface = cairo_gl_surface_create (gltc->device,
content,
ceil (width),
ceil (height));
if (cairo_surface_status (surface))
_cairo_boilerplate_egl_cleanup (gltc);
return surface;
}
static void
_cairo_boilerplate_egl_synchronize (void *closure)
{
egl_target_closure_t *gltc = closure;
if (cairo_device_acquire (gltc->device))
return;
glFinish ();
cairo_device_release (gltc->device);
}
static const cairo_boilerplate_target_t targets[] = {
{
"egl", "gl", NULL, NULL,
CAIRO_SURFACE_TYPE_GL, CAIRO_CONTENT_COLOR_ALPHA, 1,
"cairo_egl_device_create",
_cairo_boilerplate_egl_create_surface,
cairo_surface_create_similar,
NULL, NULL,
_cairo_boilerplate_get_image_surface,
cairo_surface_write_to_png,
_cairo_boilerplate_egl_cleanup,
_cairo_boilerplate_egl_synchronize,
NULL,
TRUE, FALSE, FALSE
}
};
CAIRO_BOILERPLATE (egl, targets)
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