575 lines
15 KiB
C
575 lines
15 KiB
C
/*-
|
|
* Copyright (c) 1991-1997 Søren Schmidt
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer
|
|
* in this position and unchanged.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
* 3. The name of the author may not be used to endorse or promote products
|
|
* derived from this software without specific prior written permission
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
|
|
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
|
|
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
|
|
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
|
|
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
|
|
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
|
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
|
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
|
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
|
|
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
*/
|
|
|
|
#include <sys/cdefs.h>
|
|
__FBSDID("$FreeBSD$");
|
|
|
|
#include <stdio.h>
|
|
#include <sys/types.h>
|
|
#include <sys/signal.h>
|
|
#include <sys/file.h>
|
|
#include <sys/ioctl.h>
|
|
#include <sys/mman.h>
|
|
#include <sys/fbio.h>
|
|
#include <sys/kbio.h>
|
|
#include <sys/consio.h>
|
|
#include "vgl.h"
|
|
|
|
/* XXX Direct Color 24bits modes unsupported */
|
|
|
|
#define min(x, y) (((x) < (y)) ? (x) : (y))
|
|
#define max(x, y) (((x) > (y)) ? (x) : (y))
|
|
|
|
VGLBitmap *VGLDisplay;
|
|
video_info_t VGLModeInfo;
|
|
video_adapter_info_t VGLAdpInfo;
|
|
byte *VGLBuf;
|
|
|
|
static int VGLMode;
|
|
static int VGLOldMode;
|
|
static size_t VGLBufSize;
|
|
static byte *VGLMem = MAP_FAILED;
|
|
static int VGLSwitchPending;
|
|
static int VGLAbortPending;
|
|
static int VGLOnDisplay;
|
|
static unsigned int VGLCurWindow;
|
|
static int VGLInitDone = 0;
|
|
static vid_info_t VGLOldVInfo;
|
|
|
|
void
|
|
VGLEnd()
|
|
{
|
|
struct vt_mode smode;
|
|
|
|
if (!VGLInitDone)
|
|
return;
|
|
VGLInitDone = 0;
|
|
VGLSwitchPending = 0;
|
|
VGLAbortPending = 0;
|
|
|
|
signal(SIGUSR1, SIG_IGN);
|
|
|
|
if (VGLMem != MAP_FAILED) {
|
|
VGLClear(VGLDisplay, 0);
|
|
munmap(VGLMem, VGLAdpInfo.va_window_size);
|
|
}
|
|
|
|
if (VGLOldMode >= M_VESA_BASE) {
|
|
/* ugly, but necessary */
|
|
ioctl(0, _IO('V', VGLOldMode - M_VESA_BASE), 0);
|
|
if (VGLOldMode == M_VESA_800x600) {
|
|
int size[3];
|
|
size[0] = VGLOldVInfo.mv_csz;
|
|
size[1] = VGLOldVInfo.mv_rsz;
|
|
size[2] = 16;
|
|
ioctl(0, KDRASTER, size);
|
|
}
|
|
} else {
|
|
ioctl(0, _IO('S', VGLOldMode), 0);
|
|
}
|
|
ioctl(0, KDDISABIO, 0);
|
|
ioctl(0, KDSETMODE, KD_TEXT);
|
|
smode.mode = VT_AUTO;
|
|
ioctl(0, VT_SETMODE, &smode);
|
|
if (VGLBuf)
|
|
free(VGLBuf);
|
|
VGLBuf = NULL;
|
|
free(VGLDisplay);
|
|
VGLDisplay = NULL;
|
|
VGLKeyboardEnd();
|
|
}
|
|
|
|
static void
|
|
VGLAbort(int arg __unused)
|
|
{
|
|
VGLAbortPending = 1;
|
|
signal(SIGINT, SIG_IGN);
|
|
signal(SIGTERM, SIG_IGN);
|
|
signal(SIGSEGV, SIG_IGN);
|
|
signal(SIGBUS, SIG_IGN);
|
|
signal(SIGUSR2, SIG_IGN);
|
|
}
|
|
|
|
static void
|
|
VGLSwitch(int arg __unused)
|
|
{
|
|
if (!VGLOnDisplay)
|
|
VGLOnDisplay = 1;
|
|
else
|
|
VGLOnDisplay = 0;
|
|
VGLSwitchPending = 1;
|
|
signal(SIGUSR1, VGLSwitch);
|
|
}
|
|
|
|
int
|
|
VGLInit(int mode)
|
|
{
|
|
struct vt_mode smode;
|
|
int adptype;
|
|
|
|
if (VGLInitDone)
|
|
return -1;
|
|
|
|
signal(SIGUSR1, VGLSwitch);
|
|
signal(SIGINT, VGLAbort);
|
|
signal(SIGTERM, VGLAbort);
|
|
signal(SIGSEGV, VGLAbort);
|
|
signal(SIGBUS, VGLAbort);
|
|
signal(SIGUSR2, SIG_IGN);
|
|
|
|
VGLOnDisplay = 1;
|
|
VGLSwitchPending = 0;
|
|
VGLAbortPending = 0;
|
|
|
|
if (ioctl(0, CONS_GET, &VGLOldMode) || ioctl(0, CONS_CURRENT, &adptype))
|
|
return -1;
|
|
if (IOCGROUP(mode) == 'V') /* XXX: this is ugly */
|
|
VGLModeInfo.vi_mode = (mode & 0x0ff) + M_VESA_BASE;
|
|
else
|
|
VGLModeInfo.vi_mode = mode & 0x0ff;
|
|
if (ioctl(0, CONS_MODEINFO, &VGLModeInfo)) /* FBIO_MODEINFO */
|
|
return -1;
|
|
|
|
/* If current mode is VESA_800x600 then save its geometry to restore later */
|
|
if ((VGLOldMode >= M_VESA_BASE) && (VGLOldMode == M_VESA_800x600)) {
|
|
VGLOldVInfo.size = sizeof(VGLOldVInfo);
|
|
if (ioctl(0, CONS_GETINFO, &VGLOldVInfo))
|
|
return -1;
|
|
}
|
|
|
|
VGLDisplay = (VGLBitmap *)malloc(sizeof(VGLBitmap));
|
|
if (VGLDisplay == NULL)
|
|
return -2;
|
|
|
|
if (ioctl(0, KDENABIO, 0)) {
|
|
free(VGLDisplay);
|
|
return -3;
|
|
}
|
|
|
|
VGLInitDone = 1;
|
|
|
|
/*
|
|
* vi_mem_model specifies the memory model of the current video mode
|
|
* in -CURRENT.
|
|
*/
|
|
switch (VGLModeInfo.vi_mem_model) {
|
|
case V_INFO_MM_PLANAR:
|
|
/* we can handle EGA/VGA planner modes only */
|
|
if (VGLModeInfo.vi_depth != 4 || VGLModeInfo.vi_planes != 4
|
|
|| (adptype != KD_EGA && adptype != KD_VGA)) {
|
|
VGLEnd();
|
|
return -4;
|
|
}
|
|
VGLDisplay->Type = VIDBUF4;
|
|
break;
|
|
case V_INFO_MM_PACKED:
|
|
/* we can do only 256 color packed modes */
|
|
if (VGLModeInfo.vi_depth != 8) {
|
|
VGLEnd();
|
|
return -4;
|
|
}
|
|
VGLDisplay->Type = VIDBUF8;
|
|
VGLDisplay->PixelBytes = 1;
|
|
break;
|
|
case V_INFO_MM_VGAX:
|
|
VGLDisplay->Type = VIDBUF8X;
|
|
VGLDisplay->PixelBytes = 1;
|
|
break;
|
|
case V_INFO_MM_DIRECT:
|
|
VGLDisplay->PixelBytes = VGLModeInfo.vi_pixel_size;
|
|
switch (VGLDisplay->PixelBytes) {
|
|
case 2:
|
|
VGLDisplay->Type = VIDBUF16;
|
|
break;
|
|
#if notyet
|
|
case 3:
|
|
VGLDisplay->Type = VIDBUF24;
|
|
break;
|
|
#endif
|
|
case 4:
|
|
VGLDisplay->Type = VIDBUF32;
|
|
break;
|
|
default:
|
|
VGLEnd();
|
|
return -4;
|
|
}
|
|
break;
|
|
default:
|
|
VGLEnd();
|
|
return -4;
|
|
}
|
|
|
|
ioctl(0, VT_WAITACTIVE, 0);
|
|
ioctl(0, KDSETMODE, KD_GRAPHICS);
|
|
if (ioctl(0, mode, 0)) {
|
|
VGLEnd();
|
|
return -5;
|
|
}
|
|
if (ioctl(0, CONS_ADPINFO, &VGLAdpInfo)) { /* FBIO_ADPINFO */
|
|
VGLEnd();
|
|
return -6;
|
|
}
|
|
|
|
/*
|
|
* Calculate the shadow screen buffer size. In -CURRENT, va_buffer_size
|
|
* always holds the entire frame buffer size, wheather it's in the linear
|
|
* mode or windowed mode.
|
|
* VGLBufSize = VGLAdpInfo.va_buffer_size;
|
|
* In -STABLE, va_buffer_size holds the frame buffer size, only if
|
|
* the linear frame buffer mode is supported. Otherwise the field is zero.
|
|
* We shall calculate the minimal size in this case:
|
|
* VGLAdpInfo.va_line_width*VGLModeInfo.vi_height*VGLModeInfo.vi_planes
|
|
* or
|
|
* VGLAdpInfo.va_window_size*VGLModeInfo.vi_planes;
|
|
* Use whichever is larger.
|
|
*/
|
|
if (VGLAdpInfo.va_buffer_size != 0)
|
|
VGLBufSize = VGLAdpInfo.va_buffer_size;
|
|
else
|
|
VGLBufSize = max(VGLAdpInfo.va_line_width*VGLModeInfo.vi_height,
|
|
VGLAdpInfo.va_window_size)*VGLModeInfo.vi_planes;
|
|
VGLBuf = malloc(VGLBufSize);
|
|
if (VGLBuf == NULL) {
|
|
VGLEnd();
|
|
return -7;
|
|
}
|
|
|
|
#ifdef LIBVGL_DEBUG
|
|
fprintf(stderr, "VGLBufSize:0x%x\n", VGLBufSize);
|
|
#endif
|
|
|
|
/* see if we are in the windowed buffer mode or in the linear buffer mode */
|
|
if (VGLBufSize/VGLModeInfo.vi_planes > VGLAdpInfo.va_window_size) {
|
|
switch (VGLDisplay->Type) {
|
|
case VIDBUF4:
|
|
VGLDisplay->Type = VIDBUF4S;
|
|
break;
|
|
case VIDBUF8:
|
|
VGLDisplay->Type = VIDBUF8S;
|
|
break;
|
|
case VIDBUF16:
|
|
VGLDisplay->Type = VIDBUF16S;
|
|
break;
|
|
case VIDBUF24:
|
|
VGLDisplay->Type = VIDBUF24S;
|
|
break;
|
|
case VIDBUF32:
|
|
VGLDisplay->Type = VIDBUF32S;
|
|
break;
|
|
default:
|
|
VGLEnd();
|
|
return -8;
|
|
}
|
|
}
|
|
|
|
VGLMode = mode;
|
|
VGLCurWindow = 0;
|
|
|
|
VGLDisplay->Xsize = VGLModeInfo.vi_width;
|
|
VGLDisplay->Ysize = VGLModeInfo.vi_height;
|
|
VGLDisplay->VXsize = VGLAdpInfo.va_line_width
|
|
*8/(VGLModeInfo.vi_depth/VGLModeInfo.vi_planes);
|
|
VGLDisplay->VYsize = VGLBufSize/VGLModeInfo.vi_planes/VGLAdpInfo.va_line_width;
|
|
VGLDisplay->Xorigin = 0;
|
|
VGLDisplay->Yorigin = 0;
|
|
|
|
VGLMem = (byte*)mmap(0, VGLAdpInfo.va_window_size, PROT_READ|PROT_WRITE,
|
|
MAP_FILE, 0, 0);
|
|
if (VGLMem == MAP_FAILED) {
|
|
VGLEnd();
|
|
return -7;
|
|
}
|
|
VGLDisplay->Bitmap = VGLMem;
|
|
|
|
VGLSavePalette();
|
|
|
|
#ifdef LIBVGL_DEBUG
|
|
fprintf(stderr, "va_line_width:%d\n", VGLAdpInfo.va_line_width);
|
|
fprintf(stderr, "VGLXsize:%d, Ysize:%d, VXsize:%d, VYsize:%d\n",
|
|
VGLDisplay->Xsize, VGLDisplay->Ysize,
|
|
VGLDisplay->VXsize, VGLDisplay->VYsize);
|
|
#endif
|
|
|
|
smode.mode = VT_PROCESS;
|
|
smode.waitv = 0;
|
|
smode.relsig = SIGUSR1;
|
|
smode.acqsig = SIGUSR1;
|
|
smode.frsig = SIGINT;
|
|
if (ioctl(0, VT_SETMODE, &smode)) {
|
|
VGLEnd();
|
|
return -9;
|
|
}
|
|
VGLTextSetFontFile((byte*)0);
|
|
VGLClear(VGLDisplay, 0);
|
|
return 0;
|
|
}
|
|
|
|
void
|
|
VGLCheckSwitch()
|
|
{
|
|
if (VGLAbortPending) {
|
|
VGLEnd();
|
|
exit(0);
|
|
}
|
|
while (VGLSwitchPending) {
|
|
unsigned int offset;
|
|
unsigned int len;
|
|
int i;
|
|
|
|
VGLSwitchPending = 0;
|
|
if (VGLOnDisplay) {
|
|
ioctl(0, KDENABIO, 0);
|
|
ioctl(0, KDSETMODE, KD_GRAPHICS);
|
|
ioctl(0, VGLMode, 0);
|
|
VGLCurWindow = 0;
|
|
VGLMem = (byte*)mmap(0, VGLAdpInfo.va_window_size, PROT_READ|PROT_WRITE,
|
|
MAP_FILE, 0, 0);
|
|
|
|
/* XXX: what if mmap() has failed! */
|
|
VGLDisplay->Type = VIDBUF8; /* XXX */
|
|
switch (VGLModeInfo.vi_mem_model) {
|
|
case V_INFO_MM_PLANAR:
|
|
if (VGLModeInfo.vi_depth == 4 && VGLModeInfo.vi_planes == 4) {
|
|
if (VGLBufSize/VGLModeInfo.vi_planes > VGLAdpInfo.va_window_size)
|
|
VGLDisplay->Type = VIDBUF4S;
|
|
else
|
|
VGLDisplay->Type = VIDBUF4;
|
|
} else {
|
|
/* shouldn't be happening */
|
|
}
|
|
break;
|
|
case V_INFO_MM_PACKED:
|
|
if (VGLModeInfo.vi_depth == 8) {
|
|
if (VGLBufSize/VGLModeInfo.vi_planes > VGLAdpInfo.va_window_size)
|
|
VGLDisplay->Type = VIDBUF8S;
|
|
else
|
|
VGLDisplay->Type = VIDBUF8;
|
|
}
|
|
break;
|
|
case V_INFO_MM_VGAX:
|
|
VGLDisplay->Type = VIDBUF8X;
|
|
break;
|
|
case V_INFO_MM_DIRECT:
|
|
switch (VGLModeInfo.vi_pixel_size) {
|
|
case 2:
|
|
if (VGLBufSize/VGLModeInfo.vi_planes > VGLAdpInfo.va_window_size)
|
|
VGLDisplay->Type = VIDBUF16S;
|
|
else
|
|
VGLDisplay->Type = VIDBUF16;
|
|
break;
|
|
case 3:
|
|
if (VGLBufSize/VGLModeInfo.vi_planes > VGLAdpInfo.va_window_size)
|
|
VGLDisplay->Type = VIDBUF24S;
|
|
else
|
|
VGLDisplay->Type = VIDBUF24;
|
|
break;
|
|
case 4:
|
|
if (VGLBufSize/VGLModeInfo.vi_planes > VGLAdpInfo.va_window_size)
|
|
VGLDisplay->Type = VIDBUF32S;
|
|
else
|
|
VGLDisplay->Type = VIDBUF32;
|
|
break;
|
|
default:
|
|
/* shouldn't be happening */
|
|
break;
|
|
}
|
|
default:
|
|
/* shouldn't be happening */
|
|
break;
|
|
}
|
|
|
|
VGLDisplay->Bitmap = VGLMem;
|
|
VGLDisplay->Xsize = VGLModeInfo.vi_width;
|
|
VGLDisplay->Ysize = VGLModeInfo.vi_height;
|
|
VGLSetVScreenSize(VGLDisplay, VGLDisplay->VXsize, VGLDisplay->VYsize);
|
|
VGLPanScreen(VGLDisplay, VGLDisplay->Xorigin, VGLDisplay->Yorigin);
|
|
switch (VGLDisplay->Type) {
|
|
case VIDBUF4S:
|
|
outb(0x3c6, 0xff);
|
|
outb(0x3ce, 0x01); outb(0x3cf, 0x00); /* set/reset enable */
|
|
outb(0x3ce, 0x08); outb(0x3cf, 0xff); /* bit mask */
|
|
for (offset = 0; offset < VGLBufSize/VGLModeInfo.vi_planes;
|
|
offset += len) {
|
|
VGLSetSegment(offset);
|
|
len = min(VGLBufSize/VGLModeInfo.vi_planes - offset,
|
|
VGLAdpInfo.va_window_size);
|
|
for (i = 0; i < VGLModeInfo.vi_planes; i++) {
|
|
outb(0x3c4, 0x02);
|
|
outb(0x3c5, 0x01<<i);
|
|
bcopy(&VGLBuf[i*VGLBufSize/VGLModeInfo.vi_planes + offset],
|
|
VGLMem, len);
|
|
}
|
|
}
|
|
break;
|
|
case VIDBUF4:
|
|
case VIDBUF8X:
|
|
outb(0x3c6, 0xff);
|
|
outb(0x3ce, 0x01); outb(0x3cf, 0x00); /* set/reset enable */
|
|
outb(0x3ce, 0x08); outb(0x3cf, 0xff); /* bit mask */
|
|
for (i = 0; i < VGLModeInfo.vi_planes; i++) {
|
|
outb(0x3c4, 0x02);
|
|
outb(0x3c5, 0x01<<i);
|
|
bcopy(&VGLBuf[i*VGLAdpInfo.va_window_size], VGLMem,
|
|
VGLAdpInfo.va_window_size);
|
|
}
|
|
break;
|
|
case VIDBUF8:
|
|
case VIDBUF8S:
|
|
case VIDBUF16:
|
|
case VIDBUF16S:
|
|
case VIDBUF24:
|
|
case VIDBUF24S:
|
|
case VIDBUF32:
|
|
case VIDBUF32S:
|
|
for (offset = 0; offset < VGLBufSize; offset += len) {
|
|
VGLSetSegment(offset);
|
|
len = min(VGLBufSize - offset, VGLAdpInfo.va_window_size);
|
|
bcopy(&VGLBuf[offset], VGLMem, len);
|
|
}
|
|
break;
|
|
}
|
|
VGLRestorePalette();
|
|
ioctl(0, VT_RELDISP, VT_ACKACQ);
|
|
}
|
|
else {
|
|
switch (VGLDisplay->Type) {
|
|
case VIDBUF4S:
|
|
for (offset = 0; offset < VGLBufSize/VGLModeInfo.vi_planes;
|
|
offset += len) {
|
|
VGLSetSegment(offset);
|
|
len = min(VGLBufSize/VGLModeInfo.vi_planes - offset,
|
|
VGLAdpInfo.va_window_size);
|
|
for (i = 0; i < VGLModeInfo.vi_planes; i++) {
|
|
outb(0x3ce, 0x04);
|
|
outb(0x3cf, i);
|
|
bcopy(VGLMem, &VGLBuf[i*VGLBufSize/VGLModeInfo.vi_planes + offset],
|
|
len);
|
|
}
|
|
}
|
|
break;
|
|
case VIDBUF4:
|
|
case VIDBUF8X:
|
|
/*
|
|
* NOTE: the saved buffer is NOT in the MEMBUF format which
|
|
* the ordinary memory bitmap object is stored in. XXX
|
|
*/
|
|
for (i = 0; i < VGLModeInfo.vi_planes; i++) {
|
|
outb(0x3ce, 0x04);
|
|
outb(0x3cf, i);
|
|
bcopy(VGLMem, &VGLBuf[i*VGLAdpInfo.va_window_size],
|
|
VGLAdpInfo.va_window_size);
|
|
}
|
|
break;
|
|
case VIDBUF8:
|
|
case VIDBUF8S:
|
|
case VIDBUF16:
|
|
case VIDBUF16S:
|
|
case VIDBUF24:
|
|
case VIDBUF24S:
|
|
case VIDBUF32:
|
|
case VIDBUF32S:
|
|
for (offset = 0; offset < VGLBufSize; offset += len) {
|
|
VGLSetSegment(offset);
|
|
len = min(VGLBufSize - offset, VGLAdpInfo.va_window_size);
|
|
bcopy(VGLMem, &VGLBuf[offset], len);
|
|
}
|
|
break;
|
|
}
|
|
VGLMem = MAP_FAILED;
|
|
munmap(VGLDisplay->Bitmap, VGLAdpInfo.va_window_size);
|
|
ioctl(0, VGLOldMode, 0);
|
|
ioctl(0, KDSETMODE, KD_TEXT);
|
|
ioctl(0, KDDISABIO, 0);
|
|
ioctl(0, VT_RELDISP, VT_TRUE);
|
|
VGLDisplay->Bitmap = VGLBuf;
|
|
VGLDisplay->Type = MEMBUF;
|
|
VGLDisplay->Xsize = VGLDisplay->VXsize;
|
|
VGLDisplay->Ysize = VGLDisplay->VYsize;
|
|
while (!VGLOnDisplay) pause();
|
|
}
|
|
}
|
|
}
|
|
|
|
int
|
|
VGLSetSegment(unsigned int offset)
|
|
{
|
|
if (offset/VGLAdpInfo.va_window_size != VGLCurWindow) {
|
|
ioctl(0, CONS_SETWINORG, offset); /* FBIO_SETWINORG */
|
|
VGLCurWindow = offset/VGLAdpInfo.va_window_size;
|
|
}
|
|
return (offset%VGLAdpInfo.va_window_size);
|
|
}
|
|
|
|
int
|
|
VGLSetVScreenSize(VGLBitmap *object, int VXsize, int VYsize)
|
|
{
|
|
if (VXsize < object->Xsize || VYsize < object->Ysize)
|
|
return -1;
|
|
if (object->Type == MEMBUF)
|
|
return -1;
|
|
if (ioctl(0, FBIO_SETLINEWIDTH, &VXsize))
|
|
return -1;
|
|
ioctl(0, CONS_ADPINFO, &VGLAdpInfo); /* FBIO_ADPINFO */
|
|
object->VXsize = VGLAdpInfo.va_line_width
|
|
*8/(VGLModeInfo.vi_depth/VGLModeInfo.vi_planes);
|
|
object->VYsize = VGLBufSize/VGLModeInfo.vi_planes/VGLAdpInfo.va_line_width;
|
|
if (VYsize < object->VYsize)
|
|
object->VYsize = VYsize;
|
|
|
|
#ifdef LIBVGL_DEBUG
|
|
fprintf(stderr, "new size: VGLXsize:%d, Ysize:%d, VXsize:%d, VYsize:%d\n",
|
|
object->Xsize, object->Ysize, object->VXsize, object->VYsize);
|
|
#endif
|
|
|
|
return 0;
|
|
}
|
|
|
|
int
|
|
VGLPanScreen(VGLBitmap *object, int x, int y)
|
|
{
|
|
video_display_start_t origin;
|
|
|
|
if (x < 0 || x + object->Xsize > object->VXsize
|
|
|| y < 0 || y + object->Ysize > object->VYsize)
|
|
return -1;
|
|
if (object->Type == MEMBUF)
|
|
return 0;
|
|
origin.x = x;
|
|
origin.y = y;
|
|
if (ioctl(0, FBIO_SETDISPSTART, &origin))
|
|
return -1;
|
|
object->Xorigin = x;
|
|
object->Yorigin = y;
|
|
|
|
#ifdef LIBVGL_DEBUG
|
|
fprintf(stderr, "new origin: (%d, %d)\n", x, y);
|
|
#endif
|
|
|
|
return 0;
|
|
}
|