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/* Copyright © 2014 Keith Packard <keithp@keithp.com>
* Copyright © 2014 Intel Corporation
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
/** @file t_libreoffice_xrgb.c
*
* Test Render's XRGB behavior when the pixmap is initialized with PutImage.
* Catches a bug in glamor where the Render acceleration was relying on the
* high bits of the pixmap having been set to 0xff, which is certainly not
* guaranteed. The rest of rendercheck didn't catch the bug, because it uses
* XRenderFillRectangle() to initialize the common XRGB pictures, and
* apparently that was setting the unused bits to 1 at the time.
*/
#include <stdio.h>
#include <stdlib.h>
#include <ctype.h>
#include <strings.h>
#include "rendercheck.h"
#define WIDTH 1
#define HEIGHT 1
#define PIXEL_XRGB 0x11886644
#define PIXEL_ARGB 0xff886644
#define INVERT_PIXEL_ARGB 0xff7799bb
static bool
libreoffice_xrgb_test_one(Display *dpy, bool invert)
{
int x, y;
Pixmap src_pix, dst_pix;
Picture src_pict, dst_pict;
XRenderPictFormat templ;
XRenderPictFormat *pic_xrgb_format;
XRenderPictFormat *pic_argb_format;
XRenderPictFormat *pic_rgb_format;
GC gc;
XImage *image;
templ.type = PictTypeDirect;
templ.depth = 32;
templ.direct.alphaMask = 0;
templ.direct.red = 16;
templ.direct.green = 8;
templ.direct.blue = 0;
pic_xrgb_format = XRenderFindFormat(dpy,
PictFormatType |
PictFormatDepth |
PictFormatAlphaMask |
PictFormatRed |
PictFormatGreen |
PictFormatBlue,
&templ, 0);
templ.type = PictTypeDirect;
templ.depth = 32;
templ.direct.alpha = 24;
templ.direct.red = 16;
templ.direct.green = 8;
templ.direct.blue = 0;
pic_argb_format = XRenderFindFormat(dpy,
PictFormatType |
PictFormatDepth |
PictFormatAlpha |
PictFormatRed |
PictFormatGreen |
PictFormatBlue,
&templ, 0);
templ.type = PictTypeDirect;
templ.depth = 24;
templ.direct.red = 16;
templ.direct.green = 8;
templ.direct.blue = 0;
pic_rgb_format = XRenderFindFormat(dpy,
PictFormatType |
PictFormatDepth |
PictFormatRed |
PictFormatGreen |
PictFormatBlue,
&templ, 0);
if (!pic_argb_format || !pic_xrgb_format || !pic_rgb_format) {
printf("Couldn't find xRGB and ARGB formats\n");
return false;
}
src_pix = XCreatePixmap(dpy, RootWindow(dpy, DefaultScreen(dpy)),
WIDTH, HEIGHT, 32);
dst_pix = XCreatePixmap(dpy, RootWindow(dpy, DefaultScreen(dpy)),
WIDTH, HEIGHT, 32);
src_pict = XRenderCreatePicture(dpy, src_pix, pic_xrgb_format, 0,
NULL);
dst_pict = XRenderCreatePicture(dpy, dst_pix, pic_argb_format, 0,
NULL);
image = XCreateImage(dpy,
NULL,
32,
ZPixmap,
0,
NULL,
WIDTH, HEIGHT, 32, 0);
image->data = malloc(HEIGHT * image->bytes_per_line);
for (y = 0; y < HEIGHT; y++)
for (x = 0; x < WIDTH; x++)
XPutPixel(image, x, y, PIXEL_XRGB);
gc = XCreateGC(dpy, src_pix, 0, NULL);
XPutImage(dpy, src_pix, gc, image, 0, 0, 0, 0, WIDTH, HEIGHT);
if (invert) {
XSetFunction(dpy, gc, GXinvert);
XFillRectangle(dpy, src_pix, gc, 0, 0, WIDTH, HEIGHT);
}
XDestroyImage(image);
XRenderComposite(dpy, PictOpOver, src_pict, None, dst_pict,
0, 0, 0, 0, 0, 0, WIDTH, HEIGHT);
image = XGetImage(dpy, dst_pix, 0, 0, WIDTH, HEIGHT, 0xffffffff,
ZPixmap);
for (y = 0; y < HEIGHT; y++) {
for (x = 0; x < WIDTH; x++) {
unsigned long expected = (invert ? INVERT_PIXEL_ARGB :
PIXEL_ARGB);
unsigned long pixel = XGetPixel(image, x, y);
if (pixel != expected) {
printf("fail: pixel value is %08lx, "
"should be %08lx\n",
pixel, expected);
return false;
}
}
}
XDestroyImage(image);
XFreeGC(dpy, gc);
return true;
}
static struct rendercheck_test_result
test_libreoffice_xrgb(Display *dpy)
{
struct rendercheck_test_result result = { };
record_result(&result, libreoffice_xrgb_test_one(dpy, false));
record_result(&result, libreoffice_xrgb_test_one(dpy, true));
return result;
}
DECLARE_RENDERCHECK_ARG_TEST(libreoffice_xrgb, "LibreOffice xRGB",
test_libreoffice_xrgb);
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