forked from KolibriOS/kolibrios
2b176970b5
git-svn-id: svn://kolibrios.org@5362 a494cfbc-eb01-0410-851d-a64ba20cac60
140 lines
3.9 KiB
C
140 lines
3.9 KiB
C
/*
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* Copyright (c) 2012 Intel Corporation. All Rights Reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sub license, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice (including the
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* next paragraph) shall be included in all copies or substantial portions
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* of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
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* IN NO EVENT SHALL PRECISION INSIGHT AND/OR ITS SUPPLIERS BE LIABLE FOR
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* ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
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* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
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* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*/
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#include <stdio.h>
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#include <stdbool.h>
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#include <va/va_x11.h>
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#include "va_display.h"
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static Display *x11_display;
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static Window x11_window;
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static VADisplay
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va_open_display_x11(void)
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{
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x11_display = XOpenDisplay(NULL);
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if (!x11_display) {
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fprintf(stderr, "error: can't connect to X server!\n");
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return NULL;
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}
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return vaGetDisplay(x11_display);
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}
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static void
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va_close_display_x11(VADisplay va_dpy)
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{
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if (!x11_display)
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return;
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if (x11_window) {
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XUnmapWindow(x11_display, x11_window);
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XDestroyWindow(x11_display, x11_window);
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x11_window = None;
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}
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XCloseDisplay(x11_display);
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x11_display = NULL;
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}
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static int
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ensure_window(unsigned int width, unsigned int height)
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{
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Window win, rootwin;
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unsigned int black_pixel, white_pixel;
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int screen;
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if (!x11_display)
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return 0;
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if (x11_window) {
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XResizeWindow(x11_display, x11_window, width, height);
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return 1;
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}
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screen = DefaultScreen(x11_display);
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rootwin = RootWindow(x11_display, screen);
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black_pixel = BlackPixel(x11_display, screen);
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white_pixel = WhitePixel(x11_display, screen);
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win = XCreateSimpleWindow(
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x11_display,
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rootwin,
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0, 0, width, height,
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1, black_pixel, white_pixel
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);
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if (!win)
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return 0;
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x11_window = win;
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XMapWindow(x11_display, x11_window);
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XSync(x11_display, False);
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return 1;
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}
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static inline bool
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validate_rect(const VARectangle *rect)
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{
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return (rect &&
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rect->x >= 0 &&
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rect->y >= 0 &&
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rect->width > 0 &&
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rect->height > 0);
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}
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static VAStatus
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va_put_surface_x11(
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VADisplay va_dpy,
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VASurfaceID surface,
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const VARectangle *src_rect,
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const VARectangle *dst_rect
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)
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{
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unsigned int win_width, win_height;
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if (!va_dpy)
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return VA_STATUS_ERROR_INVALID_DISPLAY;
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if (surface == VA_INVALID_SURFACE)
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return VA_STATUS_ERROR_INVALID_SURFACE;
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if (!validate_rect(src_rect) || !validate_rect(dst_rect))
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return VA_STATUS_ERROR_INVALID_PARAMETER;
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win_width = dst_rect->x + dst_rect->width;
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win_height = dst_rect->y + dst_rect->height;
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if (!ensure_window(win_width, win_height))
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return VA_STATUS_ERROR_ALLOCATION_FAILED;
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return vaPutSurface(va_dpy, surface, x11_window,
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src_rect->x, src_rect->y,
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src_rect->width, src_rect->height,
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dst_rect->x, dst_rect->y,
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dst_rect->width, dst_rect->height,
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NULL, 0,
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VA_FRAME_PICTURE);
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}
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const VADisplayHooks va_display_hooks_x11 = {
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"x11",
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va_open_display_x11,
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va_close_display_x11,
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va_put_surface_x11,
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};
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