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- implemented graphics snapshot for 15, 16 and 32 bpp modes (using 24 bpp BMP format)

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- TODO: add palette to support 8 bpp modes
This commit is contained in:
Volker Ruppert 2011-08-03 16:35:04 +00:00
parent 08e80d55e0
commit b889e91898
1 changed files with 32 additions and 7 deletions
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39
bochs/gui/gui.cc
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@ -416,9 +416,9 @@ 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 fd, i, mode, pitch;
Bit8u *snapshot_ptr = NULL, *row_buffer, *tmp_ptr;
Bit8u bmp_header[54], iBits;
int fd, i, j, mode, pitch;
Bit8u *snapshot_ptr = NULL, *row_buffer, *pixel_ptr, *row_ptr;
Bit8u bmp_header[54], iBits, b1, b2;
Bit32u ilen, len, rlen;
char filename[BX_PATHNAME_LEN];
unsigned iHeight, iWidth, iDepth;
@ -466,7 +466,7 @@ void bx_gui_c::snapshot_handler(void)
free(snapshot_ptr);
return;
}
if (iDepth == 24) {
if (iDepth != 8) {
iBits = (iDepth == 8) ? 8 : 24;
rlen = (iWidth * (iBits >> 3) + 3) & ~3;
len = rlen * iHeight + 54;
@ -486,14 +486,39 @@ void bx_gui_c::snapshot_handler(void)
bmp_header[26] = 1;
bmp_header[28] = iBits;
write(fd, bmp_header, 54);
// TODO: palette for 8 bpp
pitch = iWidth * ((iDepth + 1) >> 3);
row_buffer = (Bit8u*)malloc(rlen);
tmp_ptr = snapshot_ptr + ((iHeight - 1) * pitch);
row_ptr = snapshot_ptr + ((iHeight - 1) * pitch);
for (i = iHeight; i > 0; i--) {
memset(row_buffer, 0, rlen);
memcpy(row_buffer, tmp_ptr, pitch);
if (iDepth == 24) {
memcpy(row_buffer, row_ptr, pitch);
} else if ((iDepth == 15) || (iDepth == 16)) {
pixel_ptr = row_ptr;
for (j = 0; j < (iWidth * 3); j+=3) {
b1 = *(pixel_ptr++);
b2 = *(pixel_ptr++);
*(row_buffer+j) = (b1 << 3);
if (iDepth == 15) {
*(row_buffer+j+1) = ((b1 & 0xe0) >> 2) | (b2 << 6);
*(row_buffer+j+2) = (b2 & 0x7c) << 1;
} else {
*(row_buffer+j+1) = ((b1 & 0xe0) >> 3) | (b2 << 5);
*(row_buffer+j+2) = (b2 & 0xf8);
}
}
} else if (iDepth == 32) {
pixel_ptr = row_ptr;
for (j = 0; j < (iWidth * 3); j+=3) {
*(row_buffer+j) = *(pixel_ptr++);
*(row_buffer+j+1) = *(pixel_ptr++);
*(row_buffer+j+2) = *(pixel_ptr++);
pixel_ptr++;
}
}
write(fd, row_buffer, rlen);
tmp_ptr -= pitch;
row_ptr -= pitch;
}
free(row_buffer);
} else {