summaryrefslogtreecommitdiff
path: root/src/amd_gx_randr.c
diff options
context:
space:
mode:
Diffstat (limited to 'src/amd_gx_randr.c')
-rw-r--r--src/amd_gx_randr.c331
1 files changed, 331 insertions, 0 deletions
diff --git a/src/amd_gx_randr.c b/src/amd_gx_randr.c
new file mode 100644
index 0000000..a4fa743
--- /dev/null
+++ b/src/amd_gx_randr.c
@@ -0,0 +1,331 @@
+/* Originally derived from the Intel example
+ * Copyright (C) 2002 Keith Packard, member of The XFree86 Project, Inc.
+
+ * Copyright (c) 2006 Advanced Micro Devices, 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 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.
+ *
+ * Neither the name of the Advanced Micro Devices, Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from this
+ * software without specific prior written permission.
+ */
+
+#include "xf86.h"
+#include "os.h"
+#include "mibank.h"
+#include "globals.h"
+#include "xf86.h"
+#include "xf86Priv.h"
+#include "xf86DDC.h"
+#include "mipointer.h"
+#include "windowstr.h"
+#include <X11/extensions/randr.h>
+#include <randrstr.h>
+
+#include "amd.h"
+
+static int GXRandRIndex;
+static int GXRandRGeneration;
+
+typedef struct _GXRandRInfo
+{
+ int virtualX;
+ int virtualY;
+ int mmWidth;
+ int mmHeight;
+ int maxX;
+ int maxY;
+ Rotation rotation; /* current mode */
+ Rotation supported_rotations; /* driver supported */
+} XF86RandRInfoRec, *XF86RandRInfoPtr;
+
+#define XF86RANDRINFO(p) ((XF86RandRInfoPtr) (p)->devPrivates[GXRandRIndex].ptr)
+
+static int
+GXRandRModeRefresh(DisplayModePtr mode)
+{
+ if (mode->VRefresh)
+ return (int)(mode->VRefresh + 0.5);
+ else
+ return (int)(mode->Clock * 1000.0 / mode->HTotal / mode->VTotal +
+ 0.5);
+}
+
+static Bool
+GXRandRGetInfo(ScreenPtr pScreen, Rotation * rotations)
+{
+ RRScreenSizePtr pSize;
+ ScrnInfoPtr pScrni = XF86SCRNINFO(pScreen);
+ XF86RandRInfoPtr pRandr = XF86RANDRINFO(pScreen);
+ DisplayModePtr mode;
+ int refresh0 = 60;
+ int maxX = 0, maxY = 0;
+
+ *rotations = pRandr->supported_rotations;
+
+ if (pRandr->virtualX == -1 || pRandr->virtualY == -1) {
+ pRandr->virtualX = pScrni->virtualX;
+ pRandr->virtualY = pScrni->virtualY;
+ }
+
+ for (mode = pScrni->modes;; mode = mode->next) {
+ int refresh = GXRandRModeRefresh(mode);
+
+ if (pRandr->maxX == 0 || pRandr->maxY == 0) {
+ if (maxX < mode->HDisplay)
+ maxX = mode->HDisplay;
+ if (maxY < mode->VDisplay)
+ maxY = mode->VDisplay;
+ }
+
+ if (mode == pScrni->modes)
+ refresh0 = refresh;
+
+ pSize = RRRegisterSize(pScreen,
+ mode->HDisplay, mode->VDisplay,
+ pRandr->mmWidth, pRandr->mmHeight);
+ if (!pSize)
+ return FALSE;
+
+ RRRegisterRate(pScreen, pSize, refresh);
+
+ if (mode == pScrni->currentMode &&
+ mode->HDisplay == pScrni->virtualX
+ && mode->VDisplay == pScrni->virtualY)
+ RRSetCurrentConfig(pScreen, pRandr->rotation, refresh, pSize);
+ if (mode->next == pScrni->modes)
+ break;
+ }
+
+ if (pRandr->maxX == 0 || pRandr->maxY == 0) {
+ pRandr->maxX = maxX;
+ pRandr->maxY = maxY;
+ }
+
+ if (pScrni->currentMode->HDisplay != pScrni->virtualX ||
+ pScrni->currentMode->VDisplay != pScrni->virtualY) {
+
+ mode = pScrni->modes;
+ pSize = RRRegisterSize(pScreen,
+ pRandr->virtualX, pRandr->virtualY,
+ pRandr->mmWidth, pRandr->mmHeight);
+ if (!pSize)
+ return FALSE;
+
+ RRRegisterRate(pScreen, pSize, refresh0);
+ if (pScrni->virtualX == pRandr->virtualX &&
+ pScrni->virtualY == pRandr->virtualY) {
+ RRSetCurrentConfig(pScreen, pRandr->rotation, refresh0, pSize);
+ }
+ }
+
+ return TRUE;
+}
+
+static Bool
+GXRandRSetMode(ScreenPtr pScreen,
+ DisplayModePtr mode, Bool useVirtual, int mmWidth, int mmHeight)
+{
+ ScrnInfoPtr pScrni = XF86SCRNINFO(pScreen);
+ XF86RandRInfoPtr pRandr = XF86RANDRINFO(pScreen);
+
+ int oldWidth = pScreen->width;
+ int oldHeight = pScreen->height;
+ int oldmmWidth = pScreen->mmWidth;
+ int oldmmHeight = pScreen->mmHeight;
+ WindowPtr pRoot = WindowTable[pScreen->myNum];
+ DisplayModePtr currentMode = NULL;
+ Bool ret = TRUE;
+ PixmapPtr pspix = NULL;
+
+ if (pRoot)
+ (*pScrni->EnableDisableFBAccess) (pScreen->myNum, FALSE);
+
+ if (useVirtual) {
+ pScrni->virtualX = pRandr->virtualX;
+ pScrni->virtualY = pRandr->virtualY;
+ } else {
+ pScrni->virtualX = mode->HDisplay;
+ pScrni->virtualY = mode->VDisplay;
+ }
+
+ if (pRandr->rotation & (RR_Rotate_90 | RR_Rotate_270)) {
+ pScreen->width = pScrni->virtualY;
+ pScreen->height = pScrni->virtualX;
+ pScreen->mmWidth = mmHeight;
+ pScreen->mmHeight = mmWidth;
+ } else {
+ pScreen->width = pScrni->virtualX;
+ pScreen->height = pScrni->virtualY;
+ pScreen->mmWidth = mmWidth;
+ pScreen->mmHeight = mmHeight;
+ }
+
+ if (pScrni->currentMode == mode) {
+ currentMode = pScrni->currentMode;
+ pScrni->currentMode = NULL;
+ }
+
+ if (!xf86SwitchMode(pScreen, mode)) {
+ ret = FALSE;
+ pScrni->virtualX = pScreen->width = oldWidth;
+ pScrni->virtualY = pScreen->height = oldHeight;
+ pScreen->mmWidth = oldmmWidth;
+ pScreen->mmHeight = oldmmHeight;
+ pScrni->currentMode = currentMode;
+ }
+
+ /*
+ * Get the new Screen pixmap ptr as SwitchMode might have called
+ * ModifyPixmapHeader and xf86EnableDisableFBAccess will put it back...
+ * Unfortunately.
+
+ */
+
+ pspix = (*pScreen->GetScreenPixmap) (pScreen);
+ if (pspix->devPrivate.ptr)
+ pScrni->pixmapPrivate = pspix->devPrivate;
+
+ xf86ReconfigureLayout();
+
+ xf86SetViewport(pScreen, pScreen->width, pScreen->height);
+ xf86SetViewport(pScreen, 0, 0);
+
+ if (pRoot)
+ (*pScrni->EnableDisableFBAccess) (pScreen->myNum, TRUE);
+
+ return ret;
+}
+
+Bool
+GXRandRSetConfig(ScreenPtr pScreen, Rotation rotation,
+ int rate, RRScreenSizePtr pSize)
+{
+ ScrnInfoPtr pScrni = XF86SCRNINFO(pScreen);
+ XF86RandRInfoPtr pRandr = XF86RANDRINFO(pScreen);
+
+ DisplayModePtr mode;
+ int px, py;
+ Bool useVirtual = FALSE;
+ int maxX = 0, maxY = 0;
+ Rotation oldRotation = pRandr->rotation;
+
+ pRandr->rotation = rotation;
+
+ if (pRandr->virtualX == -1 || pRandr->virtualY == -1) {
+ pRandr->virtualX = pScrni->virtualX;
+ pRandr->virtualY = pScrni->virtualY;
+ }
+
+ miPointerPosition(&px, &py);
+
+ for (mode = pScrni->modes;; mode = mode->next) {
+ if (pRandr->maxX == 0 || pRandr->maxY == 0) {
+ if (maxX < mode->HDisplay)
+ maxX = mode->HDisplay;
+ if (maxY < mode->VDisplay)
+ maxY = mode->VDisplay;
+ }
+ if (mode->HDisplay == pSize->width &&
+ mode->VDisplay == pSize->height &&
+ (rate == 0 || GXRandRModeRefresh(mode) == rate))
+ break;
+ if (mode->next == pScrni->modes) {
+ if (pSize->width == pRandr->virtualX &&
+ pSize->height == pRandr->virtualY) {
+ mode = pScrni->modes;
+ useVirtual = TRUE;
+ break;
+ }
+ if (pRandr->maxX == 0 || pRandr->maxY == 0) {
+ pRandr->maxX = maxX;
+ pRandr->maxY = maxY;
+ }
+ return FALSE;
+ }
+ }
+
+ if (pRandr->maxX == 0 || pRandr->maxY == 0) {
+ pRandr->maxX = maxX;
+ pRandr->maxY = maxY;
+ }
+
+ if (!GXRandRSetMode(pScreen, mode, useVirtual, pSize->mmWidth,
+ pSize->mmHeight)) {
+ pRandr->rotation = oldRotation;
+ return FALSE;
+ }
+
+ if (pScreen == miPointerCurrentScreen()) {
+ px = (px >= pScreen->width ? (pScreen->width - 1) : px);
+ py = (py >= pScreen->height ? (pScreen->height - 1) : py);
+
+ xf86SetViewport(pScreen, px, py);
+
+ (*pScreen->SetCursorPosition) (pScreen, px, py, FALSE);
+ }
+
+ return TRUE;
+}
+
+Rotation
+GXGetRotation(ScreenPtr pScreen)
+{
+ XF86RandRInfoPtr pRandr = XF86RANDRINFO(pScreen);
+
+ return pRandr->rotation;
+}
+
+Bool
+GXRandRInit(ScreenPtr pScreen, int rotation)
+{
+ XF86RandRInfoPtr pRandr;
+ rrScrPrivPtr rp;
+
+ if (GXRandRGeneration != serverGeneration) {
+ GXRandRIndex = AllocateScreenPrivateIndex();
+ GXRandRGeneration = serverGeneration;
+ }
+
+ pRandr = xcalloc(sizeof(XF86RandRInfoRec), 1);
+ if (pRandr == NULL)
+ return FALSE;
+
+ if (!RRScreenInit(pScreen)) {
+ xfree(pRandr);
+ return FALSE;
+ }
+
+ rp = rrGetScrPriv(pScreen);
+ rp->rrGetInfo = GXRandRGetInfo;
+ rp->rrSetConfig = GXRandRSetConfig;
+
+ pRandr->virtualX = -1;
+ pRandr->virtualY = -1;
+
+ pRandr->mmWidth = pScreen->mmWidth;
+ pRandr->mmHeight = pScreen->mmHeight;
+
+ pRandr->rotation = RR_Rotate_0;
+ pRandr->supported_rotations = rotation;
+ pRandr->maxX = pRandr->maxY = 0;
+
+ pScreen->devPrivates[GXRandRIndex].ptr = pRandr;
+ return TRUE;
+}
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-22 16:57:01 +0000