diff --git a/configure.ac b/configure.ac
index d4bfc689..bfe92e90 100644
--- a/configure.ac
+++ b/configure.ac
@@ -102,13 +102,28 @@ AS_IF([test "x$enable_vidmode" != xno], [
])
AM_CONDITIONAL([ENABLE_VIDMODE], [test "x$enable_vidmode" = xyes])
+# Check for fake Windows GDI
+AC_MSG_CHECKING([whether to enable fake WinGDI])
+AC_ARG_ENABLE([fakegdi], [AC_HELP_STRING([--enable-fakegdi],
+ [enable fake WinGDI])],
+ [enable_fakegdi=$enableval],[enable_fakegdi=no])
+AS_IF([test "x$enable_fakegdi" != xno], [
+ AC_DEFINE([FAKE_W32GDI], 1,
+ [Define to 1 to enable WinGDI method])
+ AC_MSG_RESULT([yes])
+ enable_fakegdi=yes
+], [
+ AC_MSG_RESULT([no])
+])
+AM_CONDITIONAL([FAKE_W32GDI], [test "x$enable_fakegdi" != xno])
+
# Check Windows GDI method
AC_MSG_CHECKING([whether to enable WinGDI method])
AC_ARG_ENABLE([wingdi], [AC_HELP_STRING([--enable-wingdi],
[enable WinGDI method])],
[enable_wingdi=$enableval],[enable_wingdi=maybe])
AS_IF([test "x$enable_wingdi" != xno], [
- AS_IF([test $have_windows_h = yes], [
+ AS_IF([test $have_windows_h = yes -o $enable_fakegdi = yes], [
AC_DEFINE([ENABLE_WINGDI], 1,
[Define to 1 to enable WinGDI method])
AC_MSG_RESULT([yes])
diff --git a/src/Makefile.am b/src/Makefile.am
index e83073bc..42a6d4bb 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -22,6 +22,7 @@ EXTRA_redshift_SOURCES = \
gamma-randr.c gamma-randr.h \
gamma-vidmode.c gamma-vidmode.h \
gamma-w32gdi.c gamma-w32gdi.h \
+ fake-w32gdi.c fake-w32gdi.h \
location-geoclue.c location-geoclue.h
AM_CFLAGS =
@@ -53,8 +54,12 @@ endif
if ENABLE_WINGDI
redshift_SOURCES += gamma-w32gdi.c gamma-w32gdi.h
+if FAKE_W32GDI
+redshift_SOURCES += fake-w32gdi.c fake-w32gdi.h
+else
redshift_LDADD += -lgdi32
endif
+endif
if ENABLE_GEOCLUE
diff --git a/src/fake-w32gdi.c b/src/fake-w32gdi.c
new file mode 100644
index 00000000..5ddf98b0
--- /dev/null
+++ b/src/fake-w32gdi.c
@@ -0,0 +1,275 @@
+/* fake-w32gdi.h -- Fake Windows library headers
+ This file is part of Redshift.
+
+ Redshift 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.
+
+ Redshift 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 Redshift. If not, see .
+
+ Copyright (c) 2014 Mattias Andrée
+*/
+
+#ifdef HAVE_CONFIG_H
+# include "config.h"
+#endif
+
+#include
+#include
+#include
+
+#include "fake-w32gdi.h"
+
+
+#ifndef ENABLE_RANDR
+
+/* http://msdn.microsoft.com/en-us/library/windows/desktop/dd144871(v=vs.85).aspx */
+HDC GetDC(HWND hWnd)
+{
+ (void) hWnd;
+ return (HDC*)16;
+}
+
+/* http://msdn.microsoft.com/en-us/library/windows/desktop/dd162920(v=vs.85).aspx */
+int ReleaseDC(HWND hWnd, HDC hDC)
+{
+ (void) hWnd;
+ (void) hDC;
+ 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)
+{
+ (void) hDC;
+ (void) lpRamp;
+ return TRUE;
+}
+
+/* http://msdn.microsoft.com/en-us/library/windows/desktop/dd316946(v=vs.85).aspx */
+BOOL GetDeviceGammaRamp(HDC hDC, LPVOID lpRamp)
+{
+ (void) hDC;
+ (void) lpRamp;
+ 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)
+{
+ (void) lpszOutput;
+ (void) lpInitData;
+ if (strcmp(lpszDriver, "DISPLAY"))
+ return NULL;
+ (void) lpszDevice;
+ return (HDC*)16;
+}
+
+
+/* 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)
+{
+ (void) dwFlags;
+ if (lpDevice != NULL) {
+ fprintf(stderr, "lpDevice (argument 1) for EnumDisplayDevices should be NULL");
+ abort();
+ return FALSE;
+ }
+ if (iDevNum >= 2)
+ return FALSE;
+ if (lpDisplayDevice->cb != sizeof(DISPLAY_DEVICE)) {
+ fprintf(stderr,
+ "lpDisplayDevice->cb for EnumDisplayDevices is not sizeof(DISPLAY_DEVICE)");
+ abort();
+ return FALSE;
+ }
+ strcmp(lpDisplayDevice->DeviceName, "some monitor");
+ lpDisplayDevice->StateFlags = DISPLAY_DEVICE_ACTIVE;
+ return TRUE;
+}
+
+#else
+
+
+#include
+#include
+
+
+#define GAMMA_RAMP_SIZE 256
+
+
+static xcb_connection_t *conn = NULL;
+static int dc_count = 0;
+static int 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);
+ xcb_generic_error_t *error = xcb_request_check(conn, gamma_cookie);
+ return error == 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)
+{
+ (void) lpszOutput;
+ (void) lpInitData;
+
+ if (strcmp(lpszDriver, "DISPLAY"))
+ return NULL;
+
+ int 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)
+{
+ (void) dwFlags;
+ int count = crtc_count;
+ if (lpDevice != NULL) {
+ fprintf(stderr, "lpDevice (argument 1) for EnumDisplayDevices should be NULL");
+ abort();
+ return FALSE;
+ }
+ if (crtc_count < 0) {
+ if (GetDC(NULL) == NULL)
+ return FALSE;
+ dc_count = 0;
+ count = 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)");
+ abort();
+ return FALSE;
+ }
+ sprintf(lpDisplayDevice->DeviceName, "%i", iDevNum);
+ lpDisplayDevice->StateFlags = DISPLAY_DEVICE_ACTIVE;
+ return TRUE;
+}
+
+
+#endif
diff --git a/src/fake-w32gdi.h b/src/fake-w32gdi.h
new file mode 100644
index 00000000..5e0805a0
--- /dev/null
+++ b/src/fake-w32gdi.h
@@ -0,0 +1,77 @@
+/* fake-w32gdi.h -- Fake Windows library headers
+ This file is part of Redshift.
+
+ Redshift 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.
+
+ Redshift 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 Redshift. If not, see .
+
+ Copyright (c) 2014 Mattias Andrée
+*/
+
+#ifndef REDSHIFT_FAKE_W32GDI_H
+#define REDSHIFT_FAKE_W32GDI_H
+
+#include
+
+
+/* http://msdn.microsoft.com/en-us/library/windows/desktop/aa383751(v=vs.85).aspx */
+typedef uint16_t WORD;
+typedef uint32_t DWORD;
+typedef int BOOL;
+typedef void *HDC;
+typedef void *HWND;
+typedef void *LPVOID;
+typedef char *LPCTSTR;
+typedef char TCHAR;
+#define TRUE 1
+#define FALSE 0
+
+
+/* http://msdn.microsoft.com/en-us/library/windows/desktop/dd144871(v=vs.85).aspx */
+HDC GetDC(HWND hWnd);
+
+/* http://msdn.microsoft.com/en-us/library/windows/desktop/dd162920(v=vs.85).aspx */
+int ReleaseDC(HWND hWnd, HDC hDC);
+
+
+/* http://msdn.microsoft.com/en-us/library/windows/desktop/dd144877(v=vs.85).aspx */
+int GetDeviceCaps(HDC hDC, int nIndex);
+#define COLORMGMTCAPS 1
+#define CM_GAMMA_RAMP 1
+
+/* http://msdn.microsoft.com/en-us/library/windows/desktop/dd372194(v=vs.85).aspx */
+BOOL SetDeviceGammaRamp(HDC hDC, LPVOID lpRamp);
+
+/* http://msdn.microsoft.com/en-us/library/windows/desktop/dd316946(v=vs.85).aspx */
+BOOL GetDeviceGammaRamp(HDC hDC, LPVOID lpRamp);
+
+
+/* http://msdn.microsoft.com/en-us/library/windows/desktop/dd183490(v=vs.85).aspx */
+HDC CreateDC(LPCTSTR lpszDriver, LPCTSTR lpszDevice, void *lpszOutput, void *lpInitData);
+#define TEXT(X) (X)
+
+/* http://msdn.microsoft.com/en-us/library/windows/desktop/dd183569(v=vs.85).aspx */
+typedef struct {
+ DWORD cb;
+ TCHAR DeviceName[32];
+ DWORD StateFlags;
+} DISPLAY_DEVICE;
+typedef DISPLAY_DEVICE *PDISPLAY_DEVICE;
+#define DISPLAY_DEVICE_ACTIVE 1
+
+/* 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);
+
+
+
+#endif /* ! REDSHIFT_FAKE_W32GDI_H */
+
diff --git a/src/gamma-w32gdi.c b/src/gamma-w32gdi.c
index 7193bc91..d882c17c 100644
--- a/src/gamma-w32gdi.c
+++ b/src/gamma-w32gdi.c
@@ -17,14 +17,22 @@
Copyright (c) 2010 Jon Lund Steffensen
*/
+#ifdef HAVE_CONFIG_H
+# include "config.h"
+#endif
+
#include
#include
#ifndef WINVER
# define WINVER 0x0500
#endif
-#include
-#include
+#ifdef FAKE_W32GDI
+# include "fake-w32gdi.h"
+#else
+# include
+# include
+#endif
#ifdef ENABLE_NLS
# include
diff --git a/src/gamma-w32gdi.h b/src/gamma-w32gdi.h
index e81f4c5e..4b085fae 100644
--- a/src/gamma-w32gdi.h
+++ b/src/gamma-w32gdi.h
@@ -20,8 +20,16 @@
#ifndef REDSHIFT_GAMMA_W32GDI_H
#define REDSHIFT_GAMMA_W32GDI_H
-#include
-#include
+#ifdef HAVE_CONFIG_H
+# include "config.h"
+#endif
+
+#ifdef FAKE_W32GDI
+# include "fake-w32gdi.h"
+#else
+# include
+# include
+#endif
typedef struct {