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- implemented graphics snapshot in BMP format for 24 bpp modes

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- TODO: color conversion for 15/16 and 32 bit modes, palette for 8 bpp modes
This commit is contained in:
Volker Ruppert 2011-08-02 20:08:34 +00:00
parent 9d1538f0c9
commit 08e80d55e0
1 changed files with 63 additions and 7 deletions
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70
bochs/gui/gui.cc
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@ -416,9 +416,10 @@ void bx_gui_c::copy_handler(void)
// create a text snapshot and dump it to a file
void bx_gui_c::snapshot_handler(void)
{
int mode;
Bit8u *snapshot_ptr = NULL;
Bit32u len;
int fd, i, mode, pitch;
Bit8u *snapshot_ptr = NULL, *row_buffer, *tmp_ptr;
Bit8u bmp_header[54], iBits;
Bit32u ilen, len, rlen;
char filename[BX_PATHNAME_LEN];
unsigned iHeight, iWidth, iDepth;
@ -441,12 +442,67 @@ void bx_gui_c::snapshot_handler(void)
fclose(fp);
free(snapshot_ptr);
} else if (mode == BX_GUI_SNAPSHOT_GFX) {
len = DEV_vga_get_gfx_snapshot(&snapshot_ptr, &iHeight, &iWidth, &iDepth);
// TODO
ilen = DEV_vga_get_gfx_snapshot(&snapshot_ptr, &iHeight, &iWidth, &iDepth);
BX_INFO(("GFX snapshot: %u x %u x %u bpp (%u bytes)", iWidth, iHeight, iDepth, ilen));
if (BX_GUI_THIS dialog_caps & BX_GUI_DLG_SNAPSHOT) {
int ret = SIM->ask_filename (filename, sizeof(filename),
"Save snapshot as...", "snapshot.bmp",
bx_param_string_c::SAVE_FILE_DIALOG);
if (ret < 0) { // cancelled
free(snapshot_ptr);
BX_ERROR(("snapshot button failed, GFX mode not implemented"));
return;
}
} else {
BX_ERROR(("snapshot button failed, VGA mode not implemented"));
strcpy (filename, "snapshot.bmp");
}
fd = open(filename, O_WRONLY | O_CREAT | O_TRUNC
#ifdef O_BINARY
| O_BINARY
#endif
, S_IRUSR | S_IWUSR
);
if (fd < 0) {
BX_ERROR(("snapshot button failed: cannot create BMP file"));
free(snapshot_ptr);
return;
}
if (iDepth == 24) {
iBits = (iDepth == 8) ? 8 : 24;
rlen = (iWidth * (iBits >> 3) + 3) & ~3;
len = rlen * iHeight + 54;
memset(bmp_header, 0, 54);
bmp_header[0] = 0x42;
bmp_header[1] = 0x4d;
bmp_header[2] = len & 0xff;
bmp_header[3] = (len >> 8) & 0xff;
bmp_header[4] = (len >> 16) & 0xff;
bmp_header[5] = (len >> 24) & 0xff;
bmp_header[10] = 54;
bmp_header[14] = 40;
bmp_header[18] = iWidth & 0xff;
bmp_header[19] = (iWidth >> 8) & 0xff;
bmp_header[22] = iHeight & 0xff;
bmp_header[23] = (iHeight >> 8) & 0xff;
bmp_header[26] = 1;
bmp_header[28] = iBits;
write(fd, bmp_header, 54);
pitch = iWidth * ((iDepth + 1) >> 3);
row_buffer = (Bit8u*)malloc(rlen);
tmp_ptr = snapshot_ptr + ((iHeight - 1) * pitch);
for (i = iHeight; i > 0; i--) {
memset(row_buffer, 0, rlen);
memcpy(row_buffer, tmp_ptr, pitch);
write(fd, row_buffer, rlen);
tmp_ptr -= pitch;
}
free(row_buffer);
} else {
BX_ERROR(("snapshot button failed: GFX mode with %u bpp not implemented", iDepth));
}
close(fd);
free(snapshot_ptr);
} else {
BX_ERROR(("snapshot button failed: VGA mode not implemented"));
}
}