244 lines
7.4 KiB
C
244 lines
7.4 KiB
C
/*
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* Copyright © 2008 Keith Packard <keithp@keithp.com>
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*
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* Permission is hereby granted, free of charge, to any person
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* obtaining a copy of this software and associated documentation
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* files (the "Software"), to deal in the Software without
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* restriction, including without limitation the rights to use, copy,
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* modify, merge, publish, distribute, sublicense, and/or sell copies
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* of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be
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* included in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY
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* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF
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* CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*
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* Except as contained in this notice, the names of the authors or
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* their institutions shall not be used in advertising or otherwise to
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* promote the sale, use or other dealings in this Software without
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* prior written authorization from the authors.
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*/
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include <stdlib.h>
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#include <stdio.h>
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#include <string.h>
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#include <assert.h>
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#include <xcb/xcb.h>
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#include <xcb/xcb_aux.h>
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#include "xcb_image.h"
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xcb_image_format_t formats[] = {
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XCB_IMAGE_FORMAT_Z_PIXMAP,
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XCB_IMAGE_FORMAT_XY_PIXMAP,
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XCB_IMAGE_FORMAT_XY_BITMAP,
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};
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#define SIZE(a) (sizeof (a) / sizeof (a[0]))
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#define NFORMAT SIZE(formats)
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int bpps[] = {
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1, 4, 8, 16, 32
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};
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#define NBPP SIZE(bpps)
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int units[] = {
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8, 16, 32
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};
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#define NUNIT SIZE(units)
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xcb_image_order_t byte_orders[] = {
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XCB_IMAGE_ORDER_LSB_FIRST,
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XCB_IMAGE_ORDER_MSB_FIRST
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};
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#define NBYTE_ORDER SIZE(byte_orders)
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static
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uint32_t pixel_mask (int bpp)
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{
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if (bpp == 32)
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return 0xffffffff;
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return (1 << bpp) - 1;
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}
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int
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compare_image(xcb_image_t *a, xcb_image_t *b)
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{
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int x, y;
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uint32_t a_pixel, b_pixel;
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uint32_t mask = pixel_mask (a->bpp) & pixel_mask (b->bpp);
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for (y = 0; y < a->height; y++)
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for (x = 0; x < a->width; x++) {
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a_pixel = xcb_image_get_pixel (a, x, y) & mask;
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b_pixel = xcb_image_get_pixel (b, x, y) & mask;
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if (a_pixel != b_pixel) {
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fprintf (stderr, "fail at %d,%d: 0x%x != 0x%x\n",
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x, y, a_pixel, b_pixel);
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return 0;
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}
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}
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return 1;
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}
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#define test_width 63
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#define test_height 2
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static xcb_image_t *
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create_test_image (void)
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{
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xcb_image_t *test_image;
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int x, y;
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uint32_t pixel;
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test_image = xcb_image_create(test_width, test_height,
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XCB_IMAGE_FORMAT_Z_PIXMAP,
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32,
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32,
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32,
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32,
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XCB_IMAGE_ORDER_LSB_FIRST,
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XCB_IMAGE_ORDER_LSB_FIRST,
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NULL, 0, NULL);
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pixel = 0;
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for (y = 0; y < test_height; y++)
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for (x = 0; x < test_width; x++) {
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xcb_image_put_pixel (test_image, x, y, pixel);
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pixel++;
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}
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return test_image;
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}
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static void
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convert_test (xcb_image_t *test, xcb_image_t *a)
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{
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int x, y;
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for (y = 0; y < test->height; y++)
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for (x = 0; x < test->width; x++)
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xcb_image_put_pixel (a, x, y, xcb_image_get_pixel (test, x, y));
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}
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static char *
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order_name (xcb_image_order_t order) {
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if (order == XCB_IMAGE_ORDER_MSB_FIRST)
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return "MSB";
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else
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return "LSB";
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}
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static void
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print_format (xcb_image_t *image)
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{
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switch (image->format) {
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case XCB_IMAGE_FORMAT_Z_PIXMAP: fprintf (stderr, "Z pixmap"); break;
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case XCB_IMAGE_FORMAT_XY_PIXMAP: fprintf (stderr, "XY pixmap"); break;
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case XCB_IMAGE_FORMAT_XY_BITMAP: fprintf (stderr, "XY bitmap"); break;
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}
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fprintf (stderr, " pad: %d bpp: %d depth: %d unit: %d planemask: 0x%08x",
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image->scanline_pad, image->bpp, image->depth, image->unit,
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image->plane_mask);
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fprintf (stderr, " byte order: %s bit order: %s stride: %d\n",
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order_name (image->byte_order), order_name (image->bit_order),
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image->stride);
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}
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int main (int argc, char **argv) {
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xcb_image_t *test_image;
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xcb_image_t *src_image;
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xcb_image_t *dst_image;
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int dst_format_i, dst_bpp_i, dst_unit_i, dst_byte_order_i, dst_bit_order_i;
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int src_format_i, src_bpp_i, src_unit_i, src_byte_order_i, src_bit_order_i;
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xcb_image_format_t dst_format, src_format;
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int dst_bpp, src_bpp;
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int dst_unit, src_unit;
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int dst_byte_order, src_byte_order;
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int dst_bit_order, src_bit_order;
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test_image = create_test_image ();
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for (dst_format_i = 0; dst_format_i < NFORMAT; dst_format_i++) {
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dst_format = formats[dst_format_i];
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for (src_format_i = 0; src_format_i < NFORMAT; src_format_i++) {
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src_format = formats[src_format_i];
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for (dst_bpp_i = 0; dst_bpp_i < NBPP; dst_bpp_i++) {
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dst_bpp = bpps[dst_bpp_i];
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for (src_bpp_i = 0; src_bpp_i < NBPP; src_bpp_i++) {
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src_bpp = bpps[src_bpp_i];
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for (dst_unit_i = 0; dst_unit_i < NUNIT; dst_unit_i++) {
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dst_unit = units[dst_unit_i];
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if (dst_format == XCB_IMAGE_FORMAT_Z_PIXMAP) {
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if (dst_bpp == 4 && dst_unit != 8)
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continue;
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if (dst_bpp > 4 && dst_unit != dst_bpp)
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continue;
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}
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if (dst_format == XCB_IMAGE_FORMAT_XY_BITMAP && dst_bpp != 1)
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continue;
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for (src_unit_i = 0; src_unit_i < NUNIT; src_unit_i++) {
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src_unit = units[src_unit_i];
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if (src_format == XCB_IMAGE_FORMAT_Z_PIXMAP) {
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if (src_bpp == 4 && src_unit != 8)
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continue;
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if (src_bpp > 4 && src_unit != src_bpp)
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continue;
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}
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if (src_format == XCB_IMAGE_FORMAT_XY_BITMAP && src_bpp != 1)
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continue;
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for (dst_byte_order_i = 0; dst_byte_order_i < NBYTE_ORDER; dst_byte_order_i++) {
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dst_byte_order = byte_orders[dst_byte_order_i];
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for (src_byte_order_i = 0; src_byte_order_i < NBYTE_ORDER; src_byte_order_i++) {
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src_byte_order = byte_orders[src_byte_order_i];
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for (dst_bit_order_i = 0; dst_bit_order_i < NBYTE_ORDER; dst_bit_order_i++) {
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dst_bit_order = byte_orders[dst_bit_order_i];
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if (dst_format == XCB_IMAGE_FORMAT_Z_PIXMAP && dst_bit_order != dst_byte_order)
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continue;
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for (src_bit_order_i = 0; src_bit_order_i < NBYTE_ORDER; src_bit_order_i++) {
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src_bit_order = byte_orders[src_bit_order_i];
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if (src_format == XCB_IMAGE_FORMAT_Z_PIXMAP && src_bit_order != src_byte_order)
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continue;
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src_image = xcb_image_create (test_width, test_height, src_format, 32, src_bpp, src_bpp, src_unit,
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src_byte_order, src_bit_order, NULL, 0, NULL);
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dst_image = xcb_image_create (test_width, test_height, dst_format, 32, dst_bpp, dst_bpp, dst_unit,
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dst_byte_order, dst_bit_order, NULL, 0, NULL);
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convert_test (test_image, src_image);
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if (!compare_image (test_image, src_image)) {
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fprintf (stderr, "Initialization failure:\n");
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fprintf (stderr, "src format: "); print_format(src_image);
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exit (1);
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}
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xcb_image_convert (src_image, dst_image);
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if (!compare_image (src_image, dst_image)) {
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/*
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* Call the conversion function again so that debugging
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* is easier
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*/
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fprintf (stderr, "Conversion failure:\n");
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fprintf (stderr, "src format: "); print_format(src_image);
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fprintf (stderr, "dst format: "); print_format(dst_image);
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exit (1);
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}
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xcb_image_destroy (src_image);
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xcb_image_destroy (dst_image);
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}
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}
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}
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}
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}
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}
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}
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}
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}
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}
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return 0;
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}
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