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Diffstat (limited to 'hw/xfree86/vbe/vbeModes.c')
-rw-r--r--hw/xfree86/vbe/vbeModes.c477
1 files changed, 477 insertions, 0 deletions
diff --git a/hw/xfree86/vbe/vbeModes.c b/hw/xfree86/vbe/vbeModes.c
new file mode 100644
index 000000000..4d4f1bfac
--- /dev/null
+++ b/hw/xfree86/vbe/vbeModes.c
@@ -0,0 +1,477 @@
+#define DEBUG_VERB 2
+/*
+ * Copyright © 2002 David Dawes
+ *
+ * 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 AUTHOR(S) 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.
+ *
+ * Except as contained in this notice, the name of the author(s) shall
+ * not be used in advertising or otherwise to promote the sale, use or other
+ * dealings in this Software without prior written authorization from
+ * the author(s).
+ *
+ * Authors: David Dawes <dawes@xfree86.org>
+ *
+ * $XFree86: xc/programs/Xserver/hw/xfree86/vbe/vbeModes.c,v 1.1 2003/02/17 17:06:45 dawes Exp $
+ */
+
+#include "xf86.h"
+#include "xf86_ansic.h"
+#include "vbe.h"
+#include "vbeModes.h"
+
+static int
+GetDepthFlag(vbeInfoPtr pVbe, int id)
+{
+ VbeModeInfoBlock *mode;
+ int bpp;
+
+ if ((mode = VBEGetModeInfo(pVbe, id)) == NULL)
+ return 0;
+
+ if (VBE_MODE_USABLE(mode, 0)) {
+ int depth;
+
+ if (VBE_MODE_COLOR(mode)) {
+ depth = mode->RedMaskSize + mode->GreenMaskSize +
+ mode->BlueMaskSize;
+ } else {
+ depth = 1;
+ }
+ bpp = mode->BitsPerPixel;
+ VBEFreeModeInfo(mode);
+ mode = NULL;
+ switch (depth) {
+ case 1:
+ return V_DEPTH_1;
+ case 4:
+ return V_DEPTH_4;
+ case 8:
+ return V_DEPTH_8;
+ case 15:
+ return V_DEPTH_15;
+ case 16:
+ return V_DEPTH_16;
+ case 24:
+ switch (bpp) {
+ case 24:
+ return V_DEPTH_24_24;
+ case 32:
+ return V_DEPTH_24_32;
+ }
+ }
+ }
+ if (mode)
+ VBEFreeModeInfo(mode);
+ return 0;
+}
+
+/*
+ * Find supported mode depths.
+ */
+int
+VBEFindSupportedDepths(vbeInfoPtr pVbe, VbeInfoBlock *vbe, int *flags24,
+ int modeTypes)
+{
+ int i = 0;
+ int depths = 0;
+
+ if (modeTypes & V_MODETYPE_VBE) {
+ while (vbe->VideoModePtr[i] != 0xffff) {
+ depths |= GetDepthFlag(pVbe, vbe->VideoModePtr[i++]);
+ }
+ }
+
+ /*
+ * XXX This possibly only works with VBE 3.0 and later.
+ */
+ if (modeTypes & V_MODETYPE_VGA) {
+ for (i = 0; i < 0x7F; i++) {
+ depths |= GetDepthFlag(pVbe, i);
+ }
+ }
+
+ if (flags24) {
+ if (depths & V_DEPTH_24_24)
+ *flags24 |= Support24bppFb;
+ if (depths & V_DEPTH_24_32)
+ *flags24 |= Support32bppFb;
+ }
+
+ return depths;
+}
+
+static DisplayModePtr
+CheckMode(ScrnInfoPtr pScrn, vbeInfoPtr pVbe, VbeInfoBlock *vbe, int id,
+ int flags)
+{
+ CARD16 major, minor;
+ VbeModeInfoBlock *mode;
+ DisplayModePtr pMode, p;
+ VbeModeInfoData *data;
+ Bool modeOK = FALSE;
+ ModeStatus status = MODE_OK;
+
+ major = (unsigned)(vbe->VESAVersion >> 8);
+ minor = vbe->VESAVersion & 0xff;
+
+ if ((mode = VBEGetModeInfo(pVbe, id)) == NULL)
+ return NULL;
+
+ /* Does the mode match the depth/bpp? */
+ /* Some BIOS's set BitsPerPixel to 15 instead of 16 for 15/16 */
+ if (VBE_MODE_USABLE(mode, flags) &&
+ ((pScrn->bitsPerPixel == 1 && !VBE_MODE_COLOR(mode)) ||
+ (mode->BitsPerPixel > 8 &&
+ (mode->RedMaskSize + mode->GreenMaskSize +
+ mode->BlueMaskSize) == pScrn->depth &&
+ mode->BitsPerPixel == pScrn->bitsPerPixel) ||
+ (mode->BitsPerPixel == 15 && pScrn->depth == 15) ||
+ (mode->BitsPerPixel <= 8 &&
+ mode->BitsPerPixel == pScrn->bitsPerPixel))) {
+ modeOK = TRUE;
+ xf86ErrorFVerb(DEBUG_VERB, "*");
+ }
+
+ /*
+ * Check if there's a valid monitor mode that this one can be matched
+ * up with. The actual matching is done later.
+ */
+ if (modeOK) {
+ Bool sizeMatch = FALSE;
+ modeOK = FALSE;
+ for (p = pScrn->monitor->Modes; p != NULL; p = p->next) {
+ if ((p->HDisplay != mode->XResolution) ||
+ (p->VDisplay != mode->YResolution) ||
+ (p->Flags & (V_INTERLACE | V_DBLSCAN | V_CLKDIV2)))
+ continue;
+ sizeMatch = TRUE;
+ /* XXX could support the various V_ flags */
+ status = xf86CheckModeForMonitor(p, pScrn->monitor);
+ if (status == MODE_OK) {
+ modeOK = TRUE;
+ break;
+ }
+ }
+ if (sizeMatch && !modeOK) {
+ xf86DrvMsg(pScrn->scrnIndex, X_INFO,
+ "Not using built-in mode \"%dx%d\" (%s)\n",
+ mode->XResolution, mode->YResolution,
+ xf86ModeStatusToString(status));
+ }
+ }
+
+ xf86ErrorFVerb(DEBUG_VERB,
+ "Mode: %x (%dx%d)\n", id, mode->XResolution, mode->YResolution);
+ xf86ErrorFVerb(DEBUG_VERB,
+ " ModeAttributes: 0x%x\n", mode->ModeAttributes);
+ xf86ErrorFVerb(DEBUG_VERB,
+ " WinAAttributes: 0x%x\n", mode->WinAAttributes);
+ xf86ErrorFVerb(DEBUG_VERB,
+ " WinBAttributes: 0x%x\n", mode->WinBAttributes);
+ xf86ErrorFVerb(DEBUG_VERB,
+ " WinGranularity: %d\n", mode->WinGranularity);
+ xf86ErrorFVerb(DEBUG_VERB,
+ " WinSize: %d\n", mode->WinSize);
+ xf86ErrorFVerb(DEBUG_VERB,
+ " WinASegment: 0x%x\n", mode->WinASegment);
+ xf86ErrorFVerb(DEBUG_VERB,
+ " WinBSegment: 0x%x\n", mode->WinBSegment);
+ xf86ErrorFVerb(DEBUG_VERB,
+ " WinFuncPtr: 0x%x\n", mode->WinFuncPtr);
+ xf86ErrorFVerb(DEBUG_VERB,
+ " BytesPerScanline: %d\n", mode->BytesPerScanline);
+ xf86ErrorFVerb(DEBUG_VERB,
+ " XResolution: %d\n", mode->XResolution);
+ xf86ErrorFVerb(DEBUG_VERB,
+ " YResolution: %d\n", mode->YResolution);
+ xf86ErrorFVerb(DEBUG_VERB,
+ " XCharSize: %d\n", mode->XCharSize);
+ xf86ErrorFVerb(DEBUG_VERB,
+ " YCharSize: %d\n", mode->YCharSize);
+ xf86ErrorFVerb(DEBUG_VERB,
+ " NumberOfPlanes: %d\n", mode->NumberOfPlanes);
+ xf86ErrorFVerb(DEBUG_VERB,
+ " BitsPerPixel: %d\n", mode->BitsPerPixel);
+ xf86ErrorFVerb(DEBUG_VERB,
+ " NumberOfBanks: %d\n", mode->NumberOfBanks);
+ xf86ErrorFVerb(DEBUG_VERB,
+ " MemoryModel: %d\n", mode->MemoryModel);
+ xf86ErrorFVerb(DEBUG_VERB,
+ " BankSize: %d\n", mode->BankSize);
+ xf86ErrorFVerb(DEBUG_VERB,
+ " NumberOfImages: %d\n", mode->NumberOfImages);
+ xf86ErrorFVerb(DEBUG_VERB,
+ " RedMaskSize: %d\n", mode->RedMaskSize);
+ xf86ErrorFVerb(DEBUG_VERB,
+ " RedFieldPosition: %d\n", mode->RedFieldPosition);
+ xf86ErrorFVerb(DEBUG_VERB,
+ " GreenMaskSize: %d\n", mode->GreenMaskSize);
+ xf86ErrorFVerb(DEBUG_VERB,
+ " GreenFieldPosition: %d\n", mode->GreenFieldPosition);
+ xf86ErrorFVerb(DEBUG_VERB,
+ " BlueMaskSize: %d\n", mode->BlueMaskSize);
+ xf86ErrorFVerb(DEBUG_VERB,
+ " BlueFieldPosition: %d\n", mode->BlueFieldPosition);
+ xf86ErrorFVerb(DEBUG_VERB,
+ " RsvdMaskSize: %d\n", mode->RsvdMaskSize);
+ xf86ErrorFVerb(DEBUG_VERB,
+ " RsvdFieldPosition: %d\n", mode->RsvdFieldPosition);
+ xf86ErrorFVerb(DEBUG_VERB,
+ " DirectColorModeInfo: %d\n", mode->DirectColorModeInfo);
+ if (major >= 2) {
+ xf86ErrorFVerb(DEBUG_VERB,
+ " PhysBasePtr: 0x%x\n", mode->PhysBasePtr);
+ if (major >= 3) {
+ xf86ErrorFVerb(DEBUG_VERB,
+ " LinBytesPerScanLine: %d\n", mode->LinBytesPerScanLine);
+ xf86ErrorFVerb(DEBUG_VERB,
+ " BnkNumberOfImagePages: %d\n", mode->BnkNumberOfImagePages);
+ xf86ErrorFVerb(DEBUG_VERB,
+ " LinNumberOfImagePages: %d\n", mode->LinNumberOfImagePages);
+ xf86ErrorFVerb(DEBUG_VERB,
+ " LinRedMaskSize: %d\n", mode->LinRedMaskSize);
+ xf86ErrorFVerb(DEBUG_VERB,
+ " LinRedFieldPosition: %d\n", mode->LinRedFieldPosition);
+ xf86ErrorFVerb(DEBUG_VERB,
+ " LinGreenMaskSize: %d\n", mode->LinGreenMaskSize);
+ xf86ErrorFVerb(DEBUG_VERB,
+ " LinGreenFieldPosition: %d\n", mode->LinGreenFieldPosition);
+ xf86ErrorFVerb(DEBUG_VERB,
+ " LinBlueMaskSize: %d\n", mode->LinBlueMaskSize);
+ xf86ErrorFVerb(DEBUG_VERB,
+ " LinBlueFieldPosition: %d\n", mode->LinBlueFieldPosition);
+ xf86ErrorFVerb(DEBUG_VERB,
+ " LinRsvdMaskSize: %d\n", mode->LinRsvdMaskSize);
+ xf86ErrorFVerb(DEBUG_VERB,
+ " LinRsvdFieldPosition: %d\n", mode->LinRsvdFieldPosition);
+ xf86ErrorFVerb(DEBUG_VERB,
+ " MaxPixelClock: %d\n", mode->MaxPixelClock);
+ }
+ }
+
+ if (!modeOK) {
+ VBEFreeModeInfo(mode);
+ return NULL;
+ }
+ pMode = xnfcalloc(sizeof(DisplayModeRec), 1);
+
+ pMode->status = MODE_OK;
+ pMode->type = M_T_BUILTIN;
+
+ /* for adjust frame */
+ pMode->HDisplay = mode->XResolution;
+ pMode->VDisplay = mode->YResolution;
+
+ data = xnfcalloc(sizeof(VbeModeInfoData), 1);
+ data->mode = id;
+ data->data = mode;
+ pMode->PrivSize = sizeof(VbeModeInfoData);
+ pMode->Private = (INT32*)data;
+ pMode->next = NULL;
+ return pMode;
+}
+
+/*
+ * Check the available BIOS modes, and extract those that match the
+ * requirements into the modePool. Note: modePool is a NULL-terminated
+ * list.
+ */
+
+DisplayModePtr
+VBEGetModePool(ScrnInfoPtr pScrn, vbeInfoPtr pVbe, VbeInfoBlock *vbe,
+ int modeTypes)
+{
+ DisplayModePtr pMode, p = NULL, modePool = NULL;
+ int i = 0;
+
+ if (modeTypes & V_MODETYPE_VBE) {
+ while (vbe->VideoModePtr[i] != 0xffff) {
+ int id = vbe->VideoModePtr[i++];
+
+ if ((pMode = CheckMode(pScrn, pVbe, vbe, id, modeTypes)) != NULL) {
+ ModeStatus status = MODE_OK;
+
+ /* Check the mode against a specified virtual size (if any) */
+ if (pScrn->display->virtualX > 0 &&
+ pMode->HDisplay > pScrn->display->virtualX) {
+ status = MODE_VIRTUAL_X;
+ }
+ if (pScrn->display->virtualY > 0 &&
+ pMode->VDisplay > pScrn->display->virtualY) {
+ status = MODE_VIRTUAL_Y;
+ }
+ if (status != MODE_OK) {
+ xf86DrvMsg(pScrn->scrnIndex, X_INFO,
+ "Not using mode \"%dx%d\" (%s)\n",
+ pMode->HDisplay, pMode->VDisplay,
+ xf86ModeStatusToString(status));
+ } else {
+ if (p == NULL) {
+ modePool = pMode;
+ } else {
+ p->next = pMode;
+ }
+ pMode->prev = NULL;
+ p = pMode;
+ }
+ }
+ }
+ }
+ if (modeTypes & V_MODETYPE_VGA) {
+ for (i = 0; i < 0x7F; i++) {
+ if ((pMode = CheckMode(pScrn, pVbe, vbe, i, modeTypes)) != NULL) {
+ ModeStatus status = MODE_OK;
+
+ /* Check the mode against a specified virtual size (if any) */
+ if (pScrn->display->virtualX > 0 &&
+ pMode->HDisplay > pScrn->display->virtualX) {
+ status = MODE_VIRTUAL_X;
+ }
+ if (pScrn->display->virtualY > 0 &&
+ pMode->VDisplay > pScrn->display->virtualY) {
+ status = MODE_VIRTUAL_Y;
+ }
+ if (status != MODE_OK) {
+ xf86DrvMsg(pScrn->scrnIndex, X_INFO,
+ "Not using mode \"%dx%d\" (%s)\n",
+ pMode->HDisplay, pMode->VDisplay,
+ xf86ModeStatusToString(status));
+ } else {
+ if (p == NULL) {
+ modePool = pMode;
+ } else {
+ p->next = pMode;
+ }
+ pMode->prev = NULL;
+ p = pMode;
+ }
+ }
+ }
+ }
+ return modePool;
+}
+
+void
+VBESetModeNames(DisplayModePtr pMode)
+{
+ if (!pMode)
+ return;
+
+ do {
+ if (!pMode->name) {
+ /* Catch "bad" modes. */
+ if (pMode->HDisplay > 10000 || pMode->HDisplay < 0 ||
+ pMode->VDisplay > 10000 || pMode->VDisplay < 0) {
+ pMode->name = strdup("BADMODE");
+ } else {
+ pMode->name = xnfalloc(4 + 1 + 4 + 1);
+ sprintf(pMode->name, "%dx%d", pMode->HDisplay, pMode->VDisplay);
+ }
+ }
+ pMode = pMode->next;
+ } while (pMode);
+}
+
+/*
+ * Go through the monitor modes and selecting the best set of
+ * parameters for each BIOS mode. Note: This is only supported in
+ * VBE version 3.0 or later.
+ */
+void
+VBESetModeParameters(ScrnInfoPtr pScrn, vbeInfoPtr pVbe)
+{
+ DisplayModePtr pMode;
+ VbeModeInfoData *data;
+
+ pMode = pScrn->modes;
+ do {
+ DisplayModePtr p, best = NULL;
+ ModeStatus status;
+
+ for (p = pScrn->monitor->Modes; p != NULL; p = p->next) {
+ if ((p->HDisplay != pMode->HDisplay) ||
+ (p->VDisplay != pMode->VDisplay) ||
+ (p->Flags & (V_INTERLACE | V_DBLSCAN | V_CLKDIV2)))
+ continue;
+ /* XXX could support the various V_ flags */
+ status = xf86CheckModeForMonitor(p, pScrn->monitor);
+ if (status != MODE_OK)
+ continue;
+ if (!best || (p->Clock > best->Clock))
+ best = p;
+ }
+
+ if (best) {
+ int clock;
+
+ data = (VbeModeInfoData*)pMode->Private;
+ pMode->HSync = (float)best->Clock * 1000.0 / best->HTotal + 0.5;
+ pMode->VRefresh = pMode->HSync / best->VTotal + 0.5;
+ xf86DrvMsg(pScrn->scrnIndex, X_INFO,
+ "Attempting to use %dHz refresh for mode \"%s\" (%x)\n",
+ (int)pMode->VRefresh, pMode->name, data->mode);
+ data->block = xcalloc(sizeof(VbeCRTCInfoBlock), 1);
+ data->block->HorizontalTotal = best->HTotal;
+ data->block->HorizontalSyncStart = best->HSyncStart;
+ data->block->HorizontalSyncEnd = best->HSyncEnd;
+ data->block->VerticalTotal = best->VTotal;
+ data->block->VerticalSyncStart = best->VSyncStart;
+ data->block->VerticalSyncEnd = best->VSyncEnd;
+ data->block->Flags = ((best->Flags & V_NHSYNC) ? CRTC_NHSYNC : 0) |
+ ((best->Flags & V_NVSYNC) ? CRTC_NVSYNC : 0);
+ data->block->PixelClock = best->Clock * 1000;
+ /* XXX May not have this. */
+ clock = VBEGetPixelClock(pVbe, data->mode, data->block->PixelClock);
+#ifdef DEBUG
+ ErrorF("Setting clock %.2fMHz, closest is %.2fMHz\n",
+ (double)data->block->PixelClock / 1000000.0,
+ (double)clock / 1000000.0);
+#endif
+ if (clock)
+ data->block->PixelClock = clock;
+ data->mode |= (1 << 11);
+ data->block->RefreshRate = ((double)(data->block->PixelClock) /
+ (double)(best->HTotal * best->VTotal)) * 100;
+ }
+ pMode = pMode->next;
+ } while (pMode != pScrn->modes);
+}
+
+/*
+ * These wrappers are to allow (temporary) funtionality divergences.
+ */
+int
+VBEValidateModes(ScrnInfoPtr scrp, DisplayModePtr availModes,
+ char **modeNames, ClockRangePtr clockRanges,
+ int *linePitches, int minPitch, int maxPitch, int pitchInc,
+ int minHeight, int maxHeight, int virtualX, int virtualY,
+ int apertureSize, LookupModeFlags strategy)
+{
+ return xf86ValidateModes(scrp, availModes, modeNames, clockRanges,
+ linePitches, minPitch, maxPitch, pitchInc,
+ minHeight, maxHeight, virtualX, virtualY,
+ apertureSize, strategy);
+}
+
+void
+VBEPrintModes(ScrnInfoPtr scrp)
+{
+ xf86PrintModes(scrp);
+}
+
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