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Diffstat (limited to '')
| -rw-r--r-- | src/fake_w32gdi.c | 204 |
1 files changed, 0 insertions, 204 deletions
diff --git a/src/fake_w32gdi.c b/src/fake_w32gdi.c deleted file mode 100644 index c11bd82..0000000 --- a/src/fake_w32gdi.c +++ /dev/null @@ -1,204 +0,0 @@ -/** - * Copyright © 2014 Mattias Andrée (maandree@member.fsf.org) - * - * 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 3 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, see <http://www.gnu.org/licenses/>. - */ -#include "fake_w32gdi.h" - -#include <stdio.h> -#include <stdlib.h> -#include <string.h> - -#include <xcb/xcb.h> -#include <xcb/randr.h> - - -/* This file very sloppily translates Windows GDI calls to X RandR calls. - It should by no means be used, without additional modification, as a - part of a compatibility layer. The purpose of this file is only to make - it possible to test for logical errors in Windows specific code on - a GNU/Linux system under X. */ - - -#define GAMMA_RAMP_SIZE 256 - - -static xcb_connection_t* conn = NULL; -static size_t dc_count = 0; -static ssize_t crtc_count = -1; -static xcb_randr_crtc_t* crtcs = NULL; -static xcb_randr_get_screen_resources_current_reply_t* res_reply = NULL; - - -/* http://msdn.microsoft.com/en-us/library/windows/desktop/dd144871(v=vs.85).aspx */ -HDC GetDC(HWND hWnd) -{ - (void) hWnd; - return CreateDC(TEXT("DISPLAY"), "0", NULL, NULL); -} - - -/* http://msdn.microsoft.com/en-us/library/windows/desktop/dd162920(v=vs.85).aspx */ -int ReleaseDC(HWND hWnd, HDC hDC) -{ - (void) hWnd; - (void) hDC; - - dc_count--; - if (dc_count == 0) { - if (conn != NULL) - xcb_disconnect(conn); - conn = NULL; - if (res_reply != NULL) - free(res_reply); - res_reply = NULL; - } - - return 1; -} - - -/* http://msdn.microsoft.com/en-us/library/windows/desktop/dd144877(v=vs.85).aspx */ -int GetDeviceCaps(HDC hDC, int nIndex) -{ - (void) hDC; - - return CM_GAMMA_RAMP + nIndex - COLORMGMTCAPS; -} - - -/* http://msdn.microsoft.com/en-us/library/windows/desktop/dd372194(v=vs.85).aspx */ -BOOL SetDeviceGammaRamp(HDC hDC, LPVOID lpRamp) -{ - xcb_void_cookie_t gamma_cookie = - xcb_randr_set_crtc_gamma_checked(conn, *(xcb_randr_crtc_t*)hDC, GAMMA_RAMP_SIZE, - ((uint16_t *)lpRamp) + 0 * GAMMA_RAMP_SIZE, - ((uint16_t *)lpRamp) + 1 * GAMMA_RAMP_SIZE, - ((uint16_t *)lpRamp) + 2 * GAMMA_RAMP_SIZE); - return xcb_request_check(conn, gamma_cookie) == NULL ? TRUE : FALSE; -} - - -/* http://msdn.microsoft.com/en-us/library/windows/desktop/dd316946(v=vs.85).aspx */ -BOOL GetDeviceGammaRamp(HDC hDC, LPVOID lpRamp) -{ - xcb_randr_get_crtc_gamma_cookie_t gamma_cookie; - xcb_randr_get_crtc_gamma_reply_t* gamma_reply; - xcb_generic_error_t* error; - - gamma_cookie = xcb_randr_get_crtc_gamma(conn, *(xcb_randr_crtc_t*)hDC); - gamma_reply = xcb_randr_get_crtc_gamma_reply(conn, gamma_cookie, &error); - - if (error) return FALSE; - -#define DEST_RAMP(I) (((uint16_t*)lpRamp) + (I) * GAMMA_RAMP_SIZE) -#define SRC_RAMP(C) (xcb_randr_get_crtc_gamma_##C(gamma_reply)) - - memcpy(DEST_RAMP(0), SRC_RAMP(red), GAMMA_RAMP_SIZE * sizeof(uint16_t)); - memcpy(DEST_RAMP(1), SRC_RAMP(green), GAMMA_RAMP_SIZE * sizeof(uint16_t)); - memcpy(DEST_RAMP(2), SRC_RAMP(blue), GAMMA_RAMP_SIZE * sizeof(uint16_t)); - -#undef SRC_RAMP -#undef DEST_RAMP - - free(gamma_reply); - return TRUE; -} - - -/* http://msdn.microsoft.com/en-us/library/windows/desktop/dd183490(v=vs.85).aspx */ -HDC CreateDC(LPCTSTR lpszDriver, LPCTSTR lpszDevice, void* lpszOutput, void* lpInitData) -{ - int crtc_index; - - (void) lpszOutput; - (void) lpInitData; - - if (strcmp(lpszDriver, "DISPLAY")) - return NULL; - - crtc_index = atoi(lpszDevice); - - if (dc_count == 0) - { - xcb_generic_error_t* error; - xcb_screen_iterator_t iter; - xcb_randr_get_screen_resources_current_cookie_t res_cookie; - - conn = xcb_connect(NULL, NULL); - - iter = xcb_setup_roots_iterator(xcb_get_setup(conn)); - res_cookie = xcb_randr_get_screen_resources_current(conn, iter.data->root); - res_reply = xcb_randr_get_screen_resources_current_reply(conn, res_cookie, &error); - - if (error) - { - xcb_disconnect(conn); - crtc_count = -1; - return NULL; - } - - crtc_count = res_reply->num_crtcs; - crtcs = xcb_randr_get_screen_resources_current_crtcs(res_reply); - } - - if (crtc_index >= crtc_count) - { - if (dc_count == 0) - { - xcb_disconnect(conn); - crtc_count = -1; - } - return NULL; - } - - dc_count++; - return crtcs + crtc_index; -} - - -/* http://msdn.microsoft.com/en-us/library/windows/desktop/dd162609(v=vs.85).aspx */ -BOOL EnumDisplayDevices(LPCTSTR lpDevice, DWORD iDevNum, PDISPLAY_DEVICE lpDisplayDevice, DWORD dwFlags) -{ - size_t count = (size_t)crtc_count; - - (void) dwFlags; - - if (lpDevice != NULL) - { - fprintf(stderr, "lpDevice (argument 1) for EnumDisplayDevices should be NULL\n"); - abort(); - return FALSE; - } - if (crtc_count < 0) - { - if (GetDC(NULL) == NULL) - return FALSE; - dc_count = 0; - count = (size_t)crtc_count; - ReleaseDC(NULL, NULL); - } - if (iDevNum >= count) - return FALSE; - if (lpDisplayDevice->cb != sizeof(DISPLAY_DEVICE)) - { - fprintf(stderr, "lpDisplayDevice->cb for EnumDisplayDevices is not sizeof(DISPLAY_DEVICE)\n"); - abort(); - return FALSE; - } - sprintf(lpDisplayDevice->DeviceName, "%i", iDevNum); - lpDisplayDevice->StateFlags = DISPLAY_DEVICE_ACTIVE; - return TRUE; -} - |