454 lines
16 KiB
C
454 lines
16 KiB
C
#define DEBUG_VERB 2
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/*
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* Copyright © 2002 David Dawes
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
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* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF
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* OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*
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* Except as contained in this notice, the name of the author(s) shall
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* not be used in advertising or otherwise to promote the sale, use or other
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* dealings in this Software without prior written authorization from
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* the author(s).
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*
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* Authors: David Dawes <dawes@xfree86.org>
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*
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*/
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#ifdef HAVE_XORG_CONFIG_H
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#include <xorg-config.h>
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#endif
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#include <stdio.h>
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#include <string.h>
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#include "xf86.h"
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#include "vbe.h"
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#include "vbeModes.h"
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static int
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GetDepthFlag(vbeInfoPtr pVbe, int id)
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{
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VbeModeInfoBlock *mode;
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int bpp;
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if ((mode = VBEGetModeInfo(pVbe, id)) == NULL)
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return 0;
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if (VBE_MODE_USABLE(mode, 0)) {
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int depth;
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if (VBE_MODE_COLOR(mode)) {
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depth = mode->RedMaskSize + mode->GreenMaskSize +
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mode->BlueMaskSize;
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}
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else {
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depth = 1;
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}
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bpp = mode->BitsPerPixel;
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VBEFreeModeInfo(mode);
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mode = NULL;
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switch (depth) {
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case 1:
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return V_DEPTH_1;
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case 4:
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return V_DEPTH_4;
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case 8:
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return V_DEPTH_8;
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case 15:
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return V_DEPTH_15;
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case 16:
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return V_DEPTH_16;
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case 24:
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switch (bpp) {
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case 24:
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return V_DEPTH_24_24;
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case 32:
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return V_DEPTH_24_32;
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}
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}
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}
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if (mode)
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VBEFreeModeInfo(mode);
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return 0;
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}
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/*
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* Find supported mode depths.
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*/
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int
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VBEFindSupportedDepths(vbeInfoPtr pVbe, VbeInfoBlock * vbe, int *flags24,
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int modeTypes)
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{
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int i = 0;
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int depths = 0;
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if (modeTypes & V_MODETYPE_VBE) {
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while (vbe->VideoModePtr[i] != 0xffff) {
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depths |= GetDepthFlag(pVbe, vbe->VideoModePtr[i++]);
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}
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}
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/*
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* XXX This possibly only works with VBE 3.0 and later.
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*/
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if (modeTypes & V_MODETYPE_VGA) {
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for (i = 0; i < 0x7F; i++) {
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depths |= GetDepthFlag(pVbe, i);
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}
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}
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if (flags24) {
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if (depths & V_DEPTH_24_24)
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*flags24 |= Support24bppFb;
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if (depths & V_DEPTH_24_32)
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*flags24 |= Support32bppFb;
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}
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return depths;
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}
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static DisplayModePtr
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CheckMode(ScrnInfoPtr pScrn, vbeInfoPtr pVbe, VbeInfoBlock * vbe, int id,
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int flags)
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{
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CARD16 major;
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VbeModeInfoBlock *mode;
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DisplayModePtr pMode;
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VbeModeInfoData *data;
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Bool modeOK = FALSE;
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major = (unsigned) (vbe->VESAVersion >> 8);
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if ((mode = VBEGetModeInfo(pVbe, id)) == NULL)
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return NULL;
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/* Does the mode match the depth/bpp? */
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/* Some BIOS's set BitsPerPixel to 15 instead of 16 for 15/16 */
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if (VBE_MODE_USABLE(mode, flags) &&
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((pScrn->bitsPerPixel == 1 && !VBE_MODE_COLOR(mode)) ||
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(mode->BitsPerPixel > 8 &&
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(mode->RedMaskSize + mode->GreenMaskSize +
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mode->BlueMaskSize) == pScrn->depth &&
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mode->BitsPerPixel == pScrn->bitsPerPixel) ||
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(mode->BitsPerPixel == 15 && pScrn->depth == 15) ||
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(mode->BitsPerPixel <= 8 &&
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mode->BitsPerPixel == pScrn->bitsPerPixel))) {
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modeOK = TRUE;
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xf86ErrorFVerb(DEBUG_VERB, "*");
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}
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xf86ErrorFVerb(DEBUG_VERB,
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"Mode: %x (%dx%d)\n", id, mode->XResolution,
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mode->YResolution);
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xf86ErrorFVerb(DEBUG_VERB, " ModeAttributes: 0x%x\n",
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mode->ModeAttributes);
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xf86ErrorFVerb(DEBUG_VERB, " WinAAttributes: 0x%x\n",
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mode->WinAAttributes);
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xf86ErrorFVerb(DEBUG_VERB, " WinBAttributes: 0x%x\n",
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mode->WinBAttributes);
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xf86ErrorFVerb(DEBUG_VERB, " WinGranularity: %d\n",
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mode->WinGranularity);
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xf86ErrorFVerb(DEBUG_VERB, " WinSize: %d\n", mode->WinSize);
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xf86ErrorFVerb(DEBUG_VERB,
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" WinASegment: 0x%x\n", mode->WinASegment);
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xf86ErrorFVerb(DEBUG_VERB,
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" WinBSegment: 0x%x\n", mode->WinBSegment);
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xf86ErrorFVerb(DEBUG_VERB,
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" WinFuncPtr: 0x%lx\n", (unsigned long) mode->WinFuncPtr);
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xf86ErrorFVerb(DEBUG_VERB,
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" BytesPerScanline: %d\n", mode->BytesPerScanline);
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xf86ErrorFVerb(DEBUG_VERB, " XResolution: %d\n", mode->XResolution);
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xf86ErrorFVerb(DEBUG_VERB, " YResolution: %d\n", mode->YResolution);
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xf86ErrorFVerb(DEBUG_VERB, " XCharSize: %d\n", mode->XCharSize);
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xf86ErrorFVerb(DEBUG_VERB, " YCharSize: %d\n", mode->YCharSize);
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xf86ErrorFVerb(DEBUG_VERB,
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" NumberOfPlanes: %d\n", mode->NumberOfPlanes);
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xf86ErrorFVerb(DEBUG_VERB,
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" BitsPerPixel: %d\n", mode->BitsPerPixel);
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xf86ErrorFVerb(DEBUG_VERB,
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" NumberOfBanks: %d\n", mode->NumberOfBanks);
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xf86ErrorFVerb(DEBUG_VERB, " MemoryModel: %d\n", mode->MemoryModel);
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xf86ErrorFVerb(DEBUG_VERB, " BankSize: %d\n", mode->BankSize);
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xf86ErrorFVerb(DEBUG_VERB,
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" NumberOfImages: %d\n", mode->NumberOfImages);
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xf86ErrorFVerb(DEBUG_VERB, " RedMaskSize: %d\n", mode->RedMaskSize);
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xf86ErrorFVerb(DEBUG_VERB,
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" RedFieldPosition: %d\n", mode->RedFieldPosition);
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xf86ErrorFVerb(DEBUG_VERB,
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" GreenMaskSize: %d\n", mode->GreenMaskSize);
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xf86ErrorFVerb(DEBUG_VERB,
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" GreenFieldPosition: %d\n", mode->GreenFieldPosition);
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xf86ErrorFVerb(DEBUG_VERB,
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" BlueMaskSize: %d\n", mode->BlueMaskSize);
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xf86ErrorFVerb(DEBUG_VERB,
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" BlueFieldPosition: %d\n", mode->BlueFieldPosition);
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xf86ErrorFVerb(DEBUG_VERB,
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" RsvdMaskSize: %d\n", mode->RsvdMaskSize);
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xf86ErrorFVerb(DEBUG_VERB,
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" RsvdFieldPosition: %d\n", mode->RsvdFieldPosition);
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xf86ErrorFVerb(DEBUG_VERB,
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" DirectColorModeInfo: %d\n", mode->DirectColorModeInfo);
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if (major >= 2) {
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xf86ErrorFVerb(DEBUG_VERB,
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" PhysBasePtr: 0x%lx\n",
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(unsigned long) mode->PhysBasePtr);
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if (major >= 3) {
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xf86ErrorFVerb(DEBUG_VERB,
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" LinBytesPerScanLine: %d\n",
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mode->LinBytesPerScanLine);
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xf86ErrorFVerb(DEBUG_VERB, " BnkNumberOfImagePages: %d\n",
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mode->BnkNumberOfImagePages);
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xf86ErrorFVerb(DEBUG_VERB, " LinNumberOfImagePages: %d\n",
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mode->LinNumberOfImagePages);
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xf86ErrorFVerb(DEBUG_VERB, " LinRedMaskSize: %d\n",
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mode->LinRedMaskSize);
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xf86ErrorFVerb(DEBUG_VERB, " LinRedFieldPosition: %d\n",
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mode->LinRedFieldPosition);
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xf86ErrorFVerb(DEBUG_VERB, " LinGreenMaskSize: %d\n",
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mode->LinGreenMaskSize);
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xf86ErrorFVerb(DEBUG_VERB, " LinGreenFieldPosition: %d\n",
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mode->LinGreenFieldPosition);
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xf86ErrorFVerb(DEBUG_VERB, " LinBlueMaskSize: %d\n",
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mode->LinBlueMaskSize);
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xf86ErrorFVerb(DEBUG_VERB, " LinBlueFieldPosition: %d\n",
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mode->LinBlueFieldPosition);
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xf86ErrorFVerb(DEBUG_VERB, " LinRsvdMaskSize: %d\n",
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mode->LinRsvdMaskSize);
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xf86ErrorFVerb(DEBUG_VERB, " LinRsvdFieldPosition: %d\n",
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mode->LinRsvdFieldPosition);
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xf86ErrorFVerb(DEBUG_VERB, " MaxPixelClock: %ld\n",
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(unsigned long) mode->MaxPixelClock);
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}
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}
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if (!modeOK) {
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VBEFreeModeInfo(mode);
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return NULL;
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}
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pMode = xnfcalloc(sizeof(DisplayModeRec), 1);
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pMode->status = MODE_OK;
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pMode->type = M_T_BUILTIN;
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/* for adjust frame */
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pMode->HDisplay = mode->XResolution;
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pMode->VDisplay = mode->YResolution;
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data = xnfcalloc(sizeof(VbeModeInfoData), 1);
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data->mode = id;
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data->data = mode;
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pMode->PrivSize = sizeof(VbeModeInfoData);
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pMode->Private = (INT32 *) data;
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pMode->next = NULL;
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return pMode;
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}
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/*
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* Check the available BIOS modes, and extract those that match the
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* requirements into the modePool. Note: modePool is a NULL-terminated
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* list.
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*/
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DisplayModePtr
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VBEGetModePool(ScrnInfoPtr pScrn, vbeInfoPtr pVbe, VbeInfoBlock * vbe,
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int modeTypes)
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{
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DisplayModePtr pMode, p = NULL, modePool = NULL;
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int i = 0;
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if (modeTypes & V_MODETYPE_VBE) {
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while (vbe->VideoModePtr[i] != 0xffff) {
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int id = vbe->VideoModePtr[i++];
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if ((pMode = CheckMode(pScrn, pVbe, vbe, id, modeTypes)) != NULL) {
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ModeStatus status = MODE_OK;
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/* Check the mode against a specified virtual size (if any) */
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if (pScrn->display->virtualX > 0 &&
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pMode->HDisplay > pScrn->display->virtualX) {
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status = MODE_VIRTUAL_X;
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}
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if (pScrn->display->virtualY > 0 &&
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pMode->VDisplay > pScrn->display->virtualY) {
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status = MODE_VIRTUAL_Y;
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}
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if (status != MODE_OK) {
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xf86DrvMsg(pScrn->scrnIndex, X_INFO,
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"Not using mode \"%dx%d\" (%s)\n",
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pMode->HDisplay, pMode->VDisplay,
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xf86ModeStatusToString(status));
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}
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else {
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if (p == NULL) {
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modePool = pMode;
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}
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else {
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p->next = pMode;
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}
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pMode->prev = NULL;
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p = pMode;
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}
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}
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}
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}
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if (modeTypes & V_MODETYPE_VGA) {
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for (i = 0; i < 0x7F; i++) {
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if ((pMode = CheckMode(pScrn, pVbe, vbe, i, modeTypes)) != NULL) {
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ModeStatus status = MODE_OK;
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/* Check the mode against a specified virtual size (if any) */
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if (pScrn->display->virtualX > 0 &&
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pMode->HDisplay > pScrn->display->virtualX) {
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status = MODE_VIRTUAL_X;
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}
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if (pScrn->display->virtualY > 0 &&
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pMode->VDisplay > pScrn->display->virtualY) {
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status = MODE_VIRTUAL_Y;
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}
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if (status != MODE_OK) {
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xf86DrvMsg(pScrn->scrnIndex, X_INFO,
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"Not using mode \"%dx%d\" (%s)\n",
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pMode->HDisplay, pMode->VDisplay,
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xf86ModeStatusToString(status));
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}
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else {
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if (p == NULL) {
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modePool = pMode;
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}
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else {
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p->next = pMode;
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}
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pMode->prev = NULL;
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p = pMode;
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}
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}
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}
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}
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return modePool;
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}
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void
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VBESetModeNames(DisplayModePtr pMode)
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{
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if (!pMode)
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return;
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do {
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if (!pMode->name) {
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/* Catch "bad" modes. */
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if (pMode->HDisplay > 10000 || pMode->HDisplay < 0 ||
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pMode->VDisplay > 10000 || pMode->VDisplay < 0) {
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pMode->name = strdup("BADMODE");
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}
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else {
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char *tmp;
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XNFasprintf(&tmp, "%dx%d",
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pMode->HDisplay, pMode->VDisplay);
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pMode->name = tmp;
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}
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}
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pMode = pMode->next;
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} while (pMode);
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}
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/*
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* Go through the monitor modes and selecting the best set of
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* parameters for each BIOS mode. Note: This is only supported in
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* VBE version 3.0 or later.
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*/
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void
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VBESetModeParameters(ScrnInfoPtr pScrn, vbeInfoPtr pVbe)
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{
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DisplayModePtr pMode;
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VbeModeInfoData *data;
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pMode = pScrn->modes;
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do {
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DisplayModePtr p, best = NULL;
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ModeStatus status;
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for (p = pScrn->monitor->Modes; p != NULL; p = p->next) {
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if ((p->HDisplay != pMode->HDisplay) ||
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(p->VDisplay != pMode->VDisplay) ||
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(p->Flags & (V_INTERLACE | V_DBLSCAN | V_CLKDIV2)))
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continue;
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/* XXX could support the various V_ flags */
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status = xf86CheckModeForMonitor(p, pScrn->monitor);
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if (status != MODE_OK)
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continue;
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if (!best || (p->Clock > best->Clock))
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best = p;
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}
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if (best) {
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int clock;
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data = (VbeModeInfoData *) pMode->Private;
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pMode->HSync = (float) best->Clock * 1000.0 / best->HTotal + 0.5;
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pMode->VRefresh = pMode->HSync / best->VTotal + 0.5;
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xf86DrvMsg(pScrn->scrnIndex, X_INFO,
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"Attempting to use %dHz refresh for mode \"%s\" (%x)\n",
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(int) pMode->VRefresh, pMode->name, data->mode);
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data->block = calloc(sizeof(VbeCRTCInfoBlock), 1);
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data->block->HorizontalTotal = best->HTotal;
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data->block->HorizontalSyncStart = best->HSyncStart;
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data->block->HorizontalSyncEnd = best->HSyncEnd;
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data->block->VerticalTotal = best->VTotal;
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data->block->VerticalSyncStart = best->VSyncStart;
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data->block->VerticalSyncEnd = best->VSyncEnd;
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data->block->Flags = ((best->Flags & V_NHSYNC) ? CRTC_NHSYNC : 0) |
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((best->Flags & V_NVSYNC) ? CRTC_NVSYNC : 0);
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data->block->PixelClock = best->Clock * 1000;
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/* XXX May not have this. */
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clock = VBEGetPixelClock(pVbe, data->mode, data->block->PixelClock);
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DebugF("Setting clock %.2fMHz, closest is %.2fMHz\n",
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(double) data->block->PixelClock / 1000000.0,
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(double) clock / 1000000.0);
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if (clock)
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data->block->PixelClock = clock;
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data->mode |= (1 << 11);
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data->block->RefreshRate = ((double) (data->block->PixelClock) /
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(double) (best->HTotal *
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best->VTotal)) * 100;
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}
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pMode = pMode->next;
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} while (pMode != pScrn->modes);
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}
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/*
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* These wrappers are to allow (temporary) funtionality divergences.
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*/
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int
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VBEValidateModes(ScrnInfoPtr scrp, DisplayModePtr availModes,
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const char **modeNames, ClockRangePtr clockRanges,
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int *linePitches, int minPitch, int maxPitch, int pitchInc,
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int minHeight, int maxHeight, int virtualX, int virtualY,
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int apertureSize, LookupModeFlags strategy)
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{
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return xf86ValidateModes(scrp, availModes, modeNames, clockRanges,
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linePitches, minPitch, maxPitch, pitchInc,
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minHeight, maxHeight, virtualX, virtualY,
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apertureSize, strategy);
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}
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void
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VBEPrintModes(ScrnInfoPtr scrp)
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{
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xf86PrintModes(scrp);
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}
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