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/*
* Copyright © 2013 Intel Corporation
*
* 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 "config.h"
#include <string.h>
#include "weston-test-client-helper.h"
#include <stdio.h>
#include <poll.h>
#include <time.h>
#include <EGL/egl.h>
#include <wayland-egl.h>
#include <GLES2/gl2.h>
#define fail(msg) { fprintf(stderr, "%s failed\n", msg); return -1; }
struct test_data {
struct client *client;
EGLDisplay egl_dpy;
EGLContext egl_ctx;
EGLConfig egl_conf;
EGLSurface egl_surface;
};
static int
init_egl(struct test_data *test_data)
{
struct wl_egl_window *native_window;
struct surface *surface = test_data->client->surface;
const char *str, *mesa;
static const EGLint context_attribs[] = {
EGL_CONTEXT_CLIENT_VERSION, 2,
EGL_NONE
};
EGLint config_attribs[] = {
EGL_SURFACE_TYPE, EGL_WINDOW_BIT,
EGL_RED_SIZE, 1,
EGL_GREEN_SIZE, 1,
EGL_BLUE_SIZE, 1,
EGL_ALPHA_SIZE, 0,
EGL_RENDERABLE_TYPE, EGL_OPENGL_ES2_BIT,
EGL_NONE
};
EGLint major, minor, n;
EGLBoolean ret;
test_data->egl_dpy = eglGetDisplay((EGLNativeDisplayType)
test_data->client->wl_display);
if (!test_data->egl_dpy)
fail("eglGetDisplay");
if (eglInitialize(test_data->egl_dpy, &major, &minor) != EGL_TRUE)
fail("eglInitialize");
if (eglBindAPI(EGL_OPENGL_ES_API) != EGL_TRUE)
fail("eglBindAPI");
ret = eglChooseConfig(test_data->egl_dpy, config_attribs,
&test_data->egl_conf, 1, &n);
if (!(ret && n == 1))
fail("eglChooseConfig");
test_data->egl_ctx = eglCreateContext(test_data->egl_dpy,
test_data->egl_conf,
EGL_NO_CONTEXT, context_attribs);
if (!test_data->egl_ctx)
fail("eglCreateContext");
native_window =
wl_egl_window_create(surface->wl_surface,
surface->width,
surface->height);
test_data->egl_surface =
eglCreateWindowSurface(test_data->egl_dpy,
test_data->egl_conf,
(EGLNativeWindowType) native_window,
NULL);
ret = eglMakeCurrent(test_data->egl_dpy, test_data->egl_surface,
test_data->egl_surface, test_data->egl_ctx);
if (ret != EGL_TRUE)
fail("eglMakeCurrent");
/* This test is specific to mesa 10.1 and later, which is the
* first release that doesn't accidentally triple-buffer. */
str = (const char *) glGetString(GL_VERSION);
mesa = strstr(str, "Mesa ");
if (mesa == NULL)
skip("unknown EGL implementation (%s)\n", str);
if (sscanf(mesa + 5, "%d.%d", &major, &minor) != 2)
skip("unrecognized mesa version (%s)\n", str);
if (major < 10 || (major == 10 && minor < 1))
skip("mesa version too old (%s)\n", str);
return 0;
}
TEST(test_buffer_count)
{
struct test_data test_data;
uint32_t buffer_count;
int i;
test_data.client = client_create(10, 10, 10, 10);
if (init_egl(&test_data) < 0)
skip("could not initialize egl, "
"possibly using the headless backend\n");
/* This is meant to represent a typical game loop which is
* expecting eglSwapBuffers to block and throttle the
* rendering to a sensible frame rate. Therefore it doesn't
* expect to have to install a frame callback itself. I'd
* imagine this is what a typical SDL game would end up
* doing */
for (i = 0; i < 10; i++) {
glClear(GL_COLOR_BUFFER_BIT);
eglSwapBuffers(test_data.egl_dpy, test_data.egl_surface);
}
buffer_count = get_n_egl_buffers(test_data.client);
printf("buffers used = %i\n", buffer_count);
/* The implementation should only end up creating two buffers
* and cycling between them */
assert(buffer_count == 2);
}
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