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Diffstat (limited to 'test/test_xcb_image.c')
| -rw-r--r-- | test/test_xcb_image.c | 246 |
1 files changed, 246 insertions, 0 deletions
diff --git a/test/test_xcb_image.c b/test/test_xcb_image.c new file mode 100644 index 0000000..474dea0 --- /dev/null +++ b/test/test_xcb_image.c @@ -0,0 +1,246 @@ +/* + * Copyright © 2008 Bart Massey <bart@cs.pdx.edu> + * + * 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. + */ + +/* gcc -g -O2 -Wall `pkg-config --cflags --libs xcb` -o test xcb_image.o test_xcb_image.c */ + +#ifdef HAVE_CONFIG_H +#include "config.h" +#endif + +#include <stdlib.h> +#include <stdio.h> +#include <string.h> + +#include <xcb/xcb.h> + +#include <xcb/xcb_aux.h> +#include "xcb_image.h" + +#define W_W 128 +#define W_H 128 + +static void +reflect_window (xcb_connection_t *c, + xcb_drawable_t win, + xcb_drawable_t new_win, + xcb_gcontext_t gc, + uint16_t width, + uint16_t height) +{ + xcb_image_t *image; + uint32_t pixel1; + uint32_t pixel2; + int32_t left_x; + int32_t right_x; + int32_t y; + int format; + + format = XCB_IMAGE_FORMAT_XY_PIXMAP; + + printf ("get_image %d %d\n", width, height); + image = xcb_image_get (c, win, + 0, 0, width, height, + 0xaaaaaaaa, + format); + if (!image) { + printf("xcb_image_get failed: exiting\n"); + exit(1); + } + + printf ("Create image summary:\n"); + printf (" * format................: %d\n", image->format); + printf (" * byte order............: %d\n", image->byte_order); + printf (" * bitmap order..........: %d\n", image->bit_order); + printf (" * bitmap pad............: %d\n", image->scanline_pad); + printf (" * depth.................: %d\n", image->depth); + printf (" * bytes/line............: %d\n", image->stride); + printf (" * bits/pixel (or unit)..: %d\n", image->bpp); + printf (" * plane_mask............: %#x\n", image->plane_mask); + + printf ("bpl %d %d\n", image->stride, image->height); + + printf("calculating reflection -- this may take awhile...\n"); + + for (left_x = 0 ; left_x < width/2 ; left_x++) + { + for (y = 0 ; y < height ; y++) + { + pixel1 = xcb_image_get_pixel (image, left_x, y); + right_x = width - left_x-1; + if (left_x != right_x) + { + pixel2 = xcb_image_get_pixel (image, right_x, y); + xcb_image_put_pixel (image, left_x, y, pixel2); + } + xcb_image_put_pixel (image, right_x, y, pixel1); + } + } + + printf("putting image\n"); + + xcb_image_put (c, new_win, gc, image, 0, 0, 0); + image = xcb_image_get (c, new_win, + 0, 0, width, height, + ~0, + format); + + printf ("done\n"); +} + +int +main (int argc, char *argv[]) +{ + xcb_connection_t *c; + xcb_screen_t *screen; + xcb_drawable_t win; + xcb_drawable_t new_win; + xcb_drawable_t rect; + xcb_rectangle_t rect_coord = { 0, 0, W_W, W_H}; + xcb_gcontext_t bgcolor, fgcolor; + xcb_point_t points[2]; + uint32_t mask; + uint32_t valgc[2]; + uint32_t valwin[3]; + int depth; + int screen_nbr; + xcb_generic_event_t *e; + + /* Open the connexion to the X server and get the first screen */ + c = xcb_connect (NULL, &screen_nbr); + screen = xcb_aux_get_screen (c, screen_nbr); + depth = xcb_aux_get_depth (c, screen); + + /* Create a black graphic context for drawing in the foreground */ + win = screen->root; + + fgcolor = xcb_generate_id(c); + mask = XCB_GC_FOREGROUND | XCB_GC_GRAPHICS_EXPOSURES; + valgc[0] = screen->black_pixel; + valgc[1] = 0; /* no graphics exposures */ + xcb_create_gc(c, fgcolor, win, mask, valgc); + + bgcolor = xcb_generate_id(c); + mask = XCB_GC_FOREGROUND | XCB_GC_GRAPHICS_EXPOSURES; + valgc[0] = screen->white_pixel; + valgc[1] = 0; /* no graphics exposures */ + xcb_create_gc(c, bgcolor, win, mask, valgc); + + /* Ask for our window's Id */ + win = xcb_generate_id(c); + + /* Create the window */ + mask = XCB_CW_BACK_PIXEL | XCB_CW_EVENT_MASK | XCB_CW_DONT_PROPAGATE; + valwin[0] = screen->white_pixel; + valwin[1] = XCB_EVENT_MASK_KEY_PRESS | XCB_EVENT_MASK_BUTTON_RELEASE | XCB_EVENT_MASK_EXPOSURE; + valwin[2] = XCB_EVENT_MASK_BUTTON_PRESS; + xcb_create_window (c, /* Connection */ + 0, /* depth */ + win, /* window Id */ + screen->root, /* parent window */ + 0, 0, /* x, y */ + W_W, W_H, /* width, height */ + 10, /* border_width */ + XCB_WINDOW_CLASS_INPUT_OUTPUT,/* class */ + screen->root_visual, /* visual */ + mask, valwin); /* masks, not used yet */ + + /* From the tutorial: set the window title. */ + xcb_change_property (c, XCB_PROP_MODE_REPLACE, win, + XCB_ATOM_WM_NAME, XCB_ATOM_STRING, 8, + strlen ("drew"), "drew"); + + /* Map the window on the screen */ + xcb_map_window (c, win); + + /* Create a Pixmap that will fill the window */ + rect = xcb_generate_id (c); + xcb_create_pixmap(c, depth, rect, win, W_W, W_H); + xcb_poly_fill_rectangle(c, rect, bgcolor, 1, &rect_coord); + points[0].x = 0; + points[0].y = 0; + points[1].x = W_W; + points[1].y = W_H; + xcb_poly_line(c, XCB_COORD_MODE_ORIGIN, rect, fgcolor, 2, points); + points[0].x = W_W / 4; + points[0].y = 0; + points[1].x = W_W / 2; + points[1].y = W_H / 2; + xcb_poly_line(c, XCB_COORD_MODE_ORIGIN, rect, fgcolor, 2, points); + + /* Ask for our window's Id */ + new_win = xcb_generate_id(c); + + /* Create the window */ + mask = XCB_CW_BACK_PIXEL | XCB_CW_EVENT_MASK | XCB_CW_DONT_PROPAGATE; + valwin[0] = screen->white_pixel; + valwin[1] = XCB_EVENT_MASK_KEY_PRESS | XCB_EVENT_MASK_BUTTON_RELEASE | XCB_EVENT_MASK_EXPOSURE; + valwin[2] = XCB_EVENT_MASK_BUTTON_PRESS; + xcb_create_window (c, /* Connection */ + 0, /* depth */ + new_win, /* window Id */ + screen->root, /* parent window */ + 0, 0, /* x, y */ + W_W, W_H, /* width, height */ + 10, /* border_width */ + XCB_WINDOW_CLASS_INPUT_OUTPUT,/* class */ + screen->root_visual, /* visual */ + mask, valwin); /* masks, not used yet */ + /* From the tutorial: set the window title. */ + xcb_change_property (c, XCB_PROP_MODE_REPLACE, new_win, + XCB_ATOM_WM_NAME, XCB_ATOM_STRING, 8, + strlen ("got"), "got"); + + + + + /* Map the window on the screen */ + xcb_map_window (c, new_win); + + + xcb_flush (c); + + while ((e = xcb_wait_for_event(c))) + { + switch (e->response_type) + { + case XCB_EXPOSE: + { + xcb_copy_area(c, rect, win, bgcolor, + 0, 0, 0, 0, W_W, W_H); + reflect_window (c, win, new_win, + fgcolor, + W_W, W_H); + xcb_flush (c); + break; + } + } + free (e); + } + + return 1; +} |