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/*
* Copyright © 2008 Keith Packard <keithp@keithp.com>
*
* 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 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.
*
* Except as contained in this notice, the names of the authors or
* their institutions shall not be used in advertising or otherwise to
* promote the sale, use or other dealings in this Software without
* prior written authorization from the authors.
*/
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <assert.h>
#include <xcb/xcb.h>
#include "../aux/xcb_aux.h"
#include "xcb_image.h"
xcb_image_format_t formats[] = {
XCB_IMAGE_FORMAT_Z_PIXMAP,
XCB_IMAGE_FORMAT_XY_PIXMAP,
XCB_IMAGE_FORMAT_XY_BITMAP,
};
#define SIZE(a) (sizeof (a) / sizeof (a[0]))
#define NFORMAT SIZE(formats)
int bpps[] = {
1, 4, 8, 16, 32
};
#define NBPP SIZE(bpps)
int units[] = {
8, 16, 32
};
#define NUNIT SIZE(units)
xcb_image_order_t byte_orders[] = {
XCB_IMAGE_ORDER_LSB_FIRST,
XCB_IMAGE_ORDER_MSB_FIRST
};
#define NBYTE_ORDER SIZE(byte_orders)
static
uint32_t pixel_mask (int bpp)
{
if (bpp == 32)
return 0xffffffff;
return (1 << bpp) - 1;
}
int
compare_image(xcb_image_t *a, xcb_image_t *b)
{
int x, y;
uint32_t a_pixel, b_pixel;
uint32_t mask = pixel_mask (a->bpp) & pixel_mask (b->bpp);
for (y = 0; y < a->height; y++)
for (x = 0; x < a->width; x++) {
a_pixel = xcb_image_get_pixel (a, x, y) & mask;
b_pixel = xcb_image_get_pixel (b, x, y) & mask;
if (a_pixel != b_pixel) {
fprintf (stderr, "fail at %d,%d: 0x%x != 0x%x\n",
x, y, a_pixel, b_pixel);
return 0;
}
}
return 1;
}
#define test_width 63
#define test_height 2
static xcb_image_t *
create_test_image (void)
{
xcb_image_t *test_image;
int x, y;
uint32_t pixel;
test_image = xcb_image_create(test_width, test_height,
XCB_IMAGE_FORMAT_Z_PIXMAP,
32,
32,
32,
32,
XCB_IMAGE_ORDER_LSB_FIRST,
XCB_IMAGE_ORDER_LSB_FIRST,
NULL, 0, NULL);
pixel = 0;
for (y = 0; y < test_height; y++)
for (x = 0; x < test_width; x++) {
xcb_image_put_pixel (test_image, x, y, pixel);
pixel++;
}
return test_image;
}
static void
convert_test (xcb_image_t *test, xcb_image_t *a)
{
int x, y;
for (y = 0; y < test->height; y++)
for (x = 0; x < test->width; x++)
xcb_image_put_pixel (a, x, y, xcb_image_get_pixel (test, x, y));
}
static char *
order_name (xcb_image_order_t order) {
if (order == XCB_IMAGE_ORDER_MSB_FIRST)
return "MSB";
else
return "LSB";
}
static void
print_format (xcb_image_t *image)
{
switch (image->format) {
case XCB_IMAGE_FORMAT_Z_PIXMAP: fprintf (stderr, "Z pixmap"); break;
case XCB_IMAGE_FORMAT_XY_PIXMAP: fprintf (stderr, "XY pixmap"); break;
case XCB_IMAGE_FORMAT_XY_BITMAP: fprintf (stderr, "XY bitmap"); break;
}
fprintf (stderr, " pad: %d bpp: %d depth: %d unit: %d planemask: 0x%08x",
image->scanline_pad, image->bpp, image->depth, image->unit,
image->plane_mask);
fprintf (stderr, " byte order: %s bit order: %s stride: %d\n",
order_name (image->byte_order), order_name (image->bit_order),
image->stride);
}
int main (int argc, char **argv) {
xcb_image_t *test_image;
xcb_image_t *src_image;
xcb_image_t *dst_image;
int dst_format_i, dst_bpp_i, dst_unit_i, dst_byte_order_i, dst_bit_order_i;
int src_format_i, src_bpp_i, src_unit_i, src_byte_order_i, src_bit_order_i;
xcb_image_format_t dst_format, src_format;
int dst_bpp, src_bpp;
int dst_unit, src_unit;
int dst_byte_order, src_byte_order;
int dst_bit_order, src_bit_order;
test_image = create_test_image ();
for (dst_format_i = 0; dst_format_i < NFORMAT; dst_format_i++) {
dst_format = formats[dst_format_i];
for (src_format_i = 0; src_format_i < NFORMAT; src_format_i++) {
src_format = formats[src_format_i];
for (dst_bpp_i = 0; dst_bpp_i < NBPP; dst_bpp_i++) {
dst_bpp = bpps[dst_bpp_i];
for (src_bpp_i = 0; src_bpp_i < NBPP; src_bpp_i++) {
src_bpp = bpps[src_bpp_i];
for (dst_unit_i = 0; dst_unit_i < NUNIT; dst_unit_i++) {
dst_unit = units[dst_unit_i];
if (dst_format == XCB_IMAGE_FORMAT_Z_PIXMAP) {
if (dst_bpp == 4 && dst_unit != 8)
continue;
if (dst_bpp > 4 && dst_unit != dst_bpp)
continue;
}
if (dst_format == XCB_IMAGE_FORMAT_XY_BITMAP && dst_bpp != 1)
continue;
for (src_unit_i = 0; src_unit_i < NUNIT; src_unit_i++) {
src_unit = units[src_unit_i];
if (src_format == XCB_IMAGE_FORMAT_Z_PIXMAP) {
if (src_bpp == 4 && src_unit != 8)
continue;
if (src_bpp > 4 && src_unit != src_bpp)
continue;
}
if (src_format == XCB_IMAGE_FORMAT_XY_BITMAP && src_bpp != 1)
continue;
for (dst_byte_order_i = 0; dst_byte_order_i < NBYTE_ORDER; dst_byte_order_i++) {
dst_byte_order = byte_orders[dst_byte_order_i];
for (src_byte_order_i = 0; src_byte_order_i < NBYTE_ORDER; src_byte_order_i++) {
src_byte_order = byte_orders[src_byte_order_i];
for (dst_bit_order_i = 0; dst_bit_order_i < NBYTE_ORDER; dst_bit_order_i++) {
dst_bit_order = byte_orders[dst_bit_order_i];
if (dst_format == XCB_IMAGE_FORMAT_Z_PIXMAP && dst_bit_order != dst_byte_order)
continue;
for (src_bit_order_i = 0; src_bit_order_i < NBYTE_ORDER; src_bit_order_i++) {
src_bit_order = byte_orders[src_bit_order_i];
if (src_format == XCB_IMAGE_FORMAT_Z_PIXMAP && src_bit_order != src_byte_order)
continue;
src_image = xcb_image_create (test_width, test_height, src_format, 32, src_bpp, src_bpp, src_unit,
src_byte_order, src_bit_order, NULL, 0, NULL);
dst_image = xcb_image_create (test_width, test_height, dst_format, 32, dst_bpp, dst_bpp, dst_unit,
dst_byte_order, dst_bit_order, NULL, 0, NULL);
convert_test (test_image, src_image);
if (!compare_image (test_image, src_image)) {
fprintf (stderr, "Initialization failure:\n");
fprintf (stderr, "src format: "); print_format(src_image);
exit (1);
}
xcb_image_convert (src_image, dst_image);
if (!compare_image (src_image, dst_image)) {
/*
* Call the conversion function again so that debugging
* is easier
*/
fprintf (stderr, "Conversion failure:\n");
fprintf (stderr, "src format: "); print_format(src_image);
fprintf (stderr, "dst format: "); print_format(dst_image);
exit (1);
}
xcb_image_destroy (src_image);
xcb_image_destroy (dst_image);
}
}
}
}
}
}
}
}
}
}
return 0;
}
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