voodoo: add compat API.

Signed-off-by: Dave Airlie <airlied@redhat.com>

6 files changed, 129 insertions, 27 deletions

diff --git a/src/Makefile.am b/src/Makefile.am
index 5eb704e..c145c27 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -29,6 +29,7 @@ voodoo_drv_la_LDFLAGS = -module -avoid-version
 voodoo_drv_ladir = @moduledir@/drivers
 
 voodoo_drv_la_SOURCES = \
+         compat-api.h \
          voodoo_dga.c \
          voodoo_driver.c \
          voodoo.h \
diff --git a/src/compat-api.h b/src/compat-api.h
new file mode 100644
index 0000000..6bc946f
--- /dev/null
+++ b/src/compat-api.h
@@ -0,0 +1,99 @@
+/*
+ * Copyright 2012 Red Hat, Inc.
+ *
+ * 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 (including the next
+ * paragraph) 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 OR COPYRIGHT HOLDERS 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.
+ *
+ * Author: Dave Airlie <airlied@redhat.com>
+ */
+
+/* this file provides API compat between server post 1.13 and pre it,
+   it should be reused inside as many drivers as possible */
+#ifndef COMPAT_API_H
+#define COMPAT_API_H
+
+#ifndef GLYPH_HAS_GLYPH_PICTURE_ACCESSOR
+#define GetGlyphPicture(g, s) GlyphPicture((g))[(s)->myNum]
+#define SetGlyphPicture(g, s, p) GlyphPicture((g))[(s)->myNum] = p
+#endif
+
+#ifndef XF86_HAS_SCRN_CONV
+#define xf86ScreenToScrn(s) xf86Screens[(s)->myNum]
+#define xf86ScrnToScreen(s) screenInfo.screens[(s)->scrnIndex]
+#endif
+
+#ifndef XF86_SCRN_INTERFACE
+
+#define SCRN_ARG_TYPE int
+#define SCRN_INFO_PTR(arg1) ScrnInfoPtr pScrn = xf86Screens[(arg1)]
+
+#define SCREEN_ARG_TYPE int
+#define SCREEN_PTR(arg1) ScreenPtr pScreen = screenInfo.screens[(arg1)]
+
+#define SCREEN_INIT_ARGS_DECL int i, ScreenPtr pScreen, int argc, char **argv
+
+#define BLOCKHANDLER_ARGS_DECL int arg, pointer blockData, pointer pTimeout, pointer pReadmask
+#define BLOCKHANDLER_ARGS arg, blockData, pTimeout, pReadmask
+
+#define CLOSE_SCREEN_ARGS_DECL int scrnIndex, ScreenPtr pScreen
+#define CLOSE_SCREEN_ARGS scrnIndex, pScreen
+
+#define ADJUST_FRAME_ARGS_DECL int arg, int x, int y, int flags
+#define ADJUST_FRAME_ARGS(arg, x, y) (arg)->scrnIndex, x, y, 0
+
+#define SWITCH_MODE_ARGS_DECL int arg, DisplayModePtr mode, int flags
+#define SWITCH_MODE_ARGS(arg, m) (arg)->scrnIndex, m, 0
+
+#define FREE_SCREEN_ARGS_DECL int arg, int flags
+
+#define VT_FUNC_ARGS_DECL int arg, int flags
+#define VT_FUNC_ARGS pScrn->scrnIndex, 0
+
+#define XF86_SCRN_ARG(x) ((x)->scrnIndex)
+#else
+#define SCRN_ARG_TYPE ScrnInfoPtr
+#define SCRN_INFO_PTR(arg1) ScrnInfoPtr pScrn = (arg1)
+
+#define SCREEN_ARG_TYPE ScreenPtr
+#define SCREEN_PTR(arg1) ScreenPtr pScreen = (arg1)
+
+#define SCREEN_INIT_ARGS_DECL ScreenPtr pScreen, int argc, char **argv
+
+#define BLOCKHANDLER_ARGS_DECL ScreenPtr arg, pointer pTimeout, pointer pReadmask
+#define BLOCKHANDLER_ARGS arg, pTimeout, pReadmask
+
+#define CLOSE_SCREEN_ARGS_DECL ScreenPtr pScreen
+#define CLOSE_SCREEN_ARGS pScreen
+
+#define ADJUST_FRAME_ARGS_DECL ScrnInfoPtr arg, int x, int y
+#define ADJUST_FRAME_ARGS(arg, x, y) arg, x, y
+
+#define SWITCH_MODE_ARGS_DECL ScrnInfoPtr arg, DisplayModePtr mode
+#define SWITCH_MODE_ARGS(arg, m) arg, m
+
+#define FREE_SCREEN_ARGS_DECL ScrnInfoPtr arg
+
+#define VT_FUNC_ARGS_DECL ScrnInfoPtr arg
+#define VT_FUNC_ARGS pScrn
+
+#define XF86_SCRN_ARG(x) (x)
+
+#endif
+
+#endif
diff --git a/src/voodoo.h b/src/voodoo.h
index 11a62c9..5cb3799 100644
--- a/src/voodoo.h
+++ b/src/voodoo.h
@@ -1,6 +1,8 @@
 #include "voodoo_pcirename.h"
 #include <string.h>
 
+#include "compat-api.h"
+
 typedef struct {
   CARD32		m;
   CARD32		n;
diff --git a/src/voodoo_dga.c b/src/voodoo_dga.c
index 146de84..74bff97 100644
--- a/src/voodoo_dga.c
+++ b/src/voodoo_dga.c
@@ -105,7 +105,7 @@ static Bool VoodooDGASetMode(ScrnInfoPtr pScrn, DGAModePtr pDGAMode)
 	frameY0 = pScrn->frameY0;
     }
 
-    if (!(*pScrn->SwitchMode)(scrnIdx, pMode, 0))
+    if (!(*pScrn->SwitchMode)(SWITCH_MODE_ARGS(pScrn, pMode)))
 	return FALSE;
     return TRUE;
 }
diff --git a/src/voodoo_driver.c b/src/voodoo_driver.c
index 6dad301..08325e3 100644
--- a/src/voodoo_driver.c
+++ b/src/voodoo_driver.c
@@ -79,15 +79,15 @@ static const OptionInfoRec * VoodooAvailableOptions(int chipid, int busid);
 static void	VoodooIdentify(int flags);
 static Bool	VoodooProbe(DriverPtr drv, int flags);
 static Bool	VoodooPreInit(ScrnInfoPtr pScrn, int flags);
-static Bool	VoodooScreenInit(int Index, ScreenPtr pScreen, int argc, char **argv);
-static Bool	VoodooEnterVT(int scrnIndex, int flags);
-static void	VoodooLeaveVT(int scrnIndex, int flags);
-static Bool	VoodooCloseScreen(int scrnIndex, ScreenPtr pScreen);
+static Bool	VoodooScreenInit(SCREEN_INIT_ARGS_DECL);
+static Bool	VoodooEnterVT(VT_FUNC_ARGS_DECL);
+static void	VoodooLeaveVT(VT_FUNC_ARGS_DECL);
+static Bool	VoodooCloseScreen(CLOSE_SCREEN_ARGS_DECL);
 static Bool	VoodooSaveScreen(ScreenPtr pScreen, int mode);
-static void     VoodooFreeScreen(int scrnIndex, int flags);
+static void     VoodooFreeScreen(FREE_SCREEN_ARGS_DECL);
 static void     VoodooRefreshArea16(ScrnInfoPtr pScrn, int num, BoxPtr pbox);
 static void     VoodooRefreshArea24(ScrnInfoPtr pScrn, int num, BoxPtr pbox);
-static Bool	VoodooSwitchMode(int scrnIndex, DisplayModePtr mode, int flags);
+static Bool	VoodooSwitchMode(SWITCH_MODE_ARGS_DECL);
 static Bool     VoodooModeInit(ScrnInfoPtr pScrn, DisplayModePtr mode);
 static void     VoodooRestore(ScrnInfoPtr pScrn, Bool Closing);
 
@@ -580,7 +580,7 @@ VoodooPreInit(ScrnInfoPtr pScrn, int flags)
 /* Mandatory */
 /* This gets called at the start of each server generation */
 static Bool
-VoodooScreenInit(int scrnIndex, ScreenPtr pScreen, int argc, char **argv)
+VoodooScreenInit(SCREEN_INIT_ARGS_DECL)
 {
   ScrnInfoPtr pScrn;
   VoodooPtr pVoo;
@@ -592,7 +592,7 @@ VoodooScreenInit(int scrnIndex, ScreenPtr pScreen, int argc, char **argv)
   /* 
    * First get the ScrnInfoRec
    */
-  pScrn = xf86Screens[pScreen->myNum];
+  pScrn = xf86ScreenToScrn(pScreen);
 
   pVoo = VoodooPTR(pScrn);
 
@@ -730,9 +730,9 @@ VoodooScreenInit(int scrnIndex, ScreenPtr pScreen, int argc, char **argv)
 
 /* Mandatory */
 static Bool
-VoodooEnterVT(int scrnIndex, int flags)
+VoodooEnterVT(VT_FUNC_ARGS_DECL)
 {
-  ScrnInfoPtr pScrn = xf86Screens[scrnIndex];
+  SCRN_INFO_PTR(arg);
   return VoodooModeInit(pScrn, pScrn->currentMode);
 }
 
@@ -745,9 +745,9 @@ VoodooEnterVT(int scrnIndex, int flags)
 
 /* Mandatory */
 static void
-VoodooLeaveVT(int scrnIndex, int flags)
+VoodooLeaveVT(VT_FUNC_ARGS_DECL)
 {
-  ScrnInfoPtr pScrn = xf86Screens[scrnIndex];
+  SCRN_INFO_PTR(arg);
   VoodooRestore(pScrn, FALSE);
 }
 
@@ -760,9 +760,9 @@ VoodooLeaveVT(int scrnIndex, int flags)
 
 /* Mandatory */
 static Bool
-VoodooCloseScreen(int scrnIndex, ScreenPtr pScreen)
+VoodooCloseScreen(CLOSE_SCREEN_ARGS_DECL)
 {
-  ScrnInfoPtr pScrn = xf86Screens[scrnIndex];
+  ScrnInfoPtr pScrn = xf86ScreenToScrn(pScreen);
   VoodooPtr pVoo = VoodooPTR(pScrn);
 
   if (pScrn->vtSema)
@@ -780,7 +780,7 @@ VoodooCloseScreen(int scrnIndex, ScreenPtr pScreen)
   pScrn->vtSema = FALSE;
 
   pScreen->CloseScreen = pVoo->CloseScreen;
-  return (*pScreen->CloseScreen)(scrnIndex, pScreen);
+  return (*pScreen->CloseScreen)(CLOSE_SCREEN_ARGS);
 }
 
 
@@ -788,9 +788,9 @@ VoodooCloseScreen(int scrnIndex, ScreenPtr pScreen)
 
 /* Optional */
 static void
-VoodooFreeScreen(int scrnIndex, int flags)
+VoodooFreeScreen(FREE_SCREEN_ARGS_DECL)
 {
-  ScrnInfoPtr pScrn = xf86Screens[scrnIndex];
+  SCRN_INFO_PTR(arg);
   VoodooPtr pVoo = VoodooPTR(pScrn);
   /*
    * This only gets called when a screen is being deleted.  It does not
@@ -798,7 +798,7 @@ VoodooFreeScreen(int scrnIndex, int flags)
    */
   if (pVoo && pVoo->ShadowPtr)
     free(pVoo->ShadowPtr);
-  VoodooFreeRec(xf86Screens[scrnIndex]);
+  VoodooFreeRec(pScrn);
 }
 
 
@@ -814,7 +814,7 @@ VoodooSaveScreen(ScreenPtr pScreen, int mode)
   unblank = xf86IsUnblank(mode);
   if(pScreen != NULL)
   {
-    pScrn = xf86Screens[pScreen->myNum];
+    pScrn = xf86ScreenToScrn(pScreen);
     pVoo = VoodooPTR(pScrn);
     
     if(pScrn->vtSema && (unblank == pVoo->Blanked))
@@ -878,11 +878,11 @@ VoodooModeInit(ScrnInfoPtr pScrn, DisplayModePtr mode)
  *	this is needed but it does no harm.
  */
  
-static Bool VoodooSwitchMode(int scrnIndex, DisplayModePtr mode, int flags)
+static Bool VoodooSwitchMode(SWITCH_MODE_ARGS_DECL)
 {
-  ScrnInfoPtr pScrn = xf86Screens[scrnIndex];
+  SCRN_INFO_PTR(arg);
   VoodooSync(pScrn);
-  return VoodooModeInit(xf86Screens[scrnIndex], mode);
+  return VoodooModeInit(pScrn, mode);
 }
 
 static void     
diff --git a/src/voodoo_hardware.c b/src/voodoo_hardware.c
index 364f33f..88e937d 100644
--- a/src/voodoo_hardware.c
+++ b/src/voodoo_hardware.c
@@ -811,7 +811,7 @@ void VoodooClear(VoodooPtr pVoo)
  
 void VoodooReadBank(ScreenPtr pScreen, int bank)
 {
-	ScrnInfoPtr pScrn = xf86Screens[pScreen->myNum];
+	ScrnInfoPtr pScrn = xf86ScreenToScrn(pScreen);
 	VoodooPtr pVoo = VoodooPTR(pScrn);
 	if(bank)
 	{
@@ -828,7 +828,7 @@ void VoodooReadBank(ScreenPtr pScreen, int bank)
 
 void VoodooWriteBank(ScreenPtr pScreen, int bank)
 {
-	ScrnInfoPtr pScrn = xf86Screens[pScreen->myNum];
+	ScrnInfoPtr pScrn = xf86ScreenToScrn(pScreen);
 	VoodooPtr pVoo = VoodooPTR(pScrn);
 	if(bank)
 	{
@@ -846,7 +846,7 @@ void VoodooWriteBank(ScreenPtr pScreen, int bank)
 #if 0
 static void VoodooReadWriteBank(ScreenPtr pScreen, int bank)
 {
-	ScrnInfoPtr pScrn = xf86Screens[pScreen->myNum];
+	ScrnInfoPtr pScrn = xf86ScreenToScrn(pScreen);
 	VoodooPtr pVoo = VoodooPTR(pScrn);
 	if(bank)
 	{
@@ -1389,7 +1389,7 @@ CARD32 VoodooTextureFormats[3] = {PICT_a8r8g8b8, PICT_x8r8g8b8, 0};
 
 void Voodoo2XAAInit(ScreenPtr pScreen)
 {
-	ScrnInfoPtr pScrn = xf86Screens[pScreen->myNum];
+	ScrnInfoPtr pScrn = xf86ScreenToScrn(pScreen);
 	VoodooPtr pVoo = VoodooPTR(pScrn);
 	XAAInfoRecPtr pAccel = XAACreateInfoRec();
 	BoxRec cacheArea;